AI Summary

Product: Selleys Plasti-Bond Heavy Duty Bog Resin Brand: Selleys (a division of DuluxGroup Australia Pty Ltd) Category: Two-pack polyester putty filler system Primary Use: Filling holes and cracks in building materials including timber, fibrous cement, masonry, and metal using a chemical-cure two-pack system.

Quick facts

Best for: Trade professionals and capable DIYers who need a high-strength, structural-grade filler
Key benefit: Cures via chemical crosslinking rather than evaporation, producing a rigid, load-bearing fill with no significant shrinkage
Form factor: Grey paste (resin component); requires separate Plasti-Bond Hardener to cure
Application method: Mix resin with dedicated hardener at the specified ratio, apply with a filling knife, overfill, sand flush once cured (approx. 20–30 minutes)

Common questions this guide answers

Does Plasti-Bond come ready to use? → No — it must be mixed with the separately sold Plasti-Bond Hardener before it will cure; without hardener it will not set.
What PPE is required when using this product? → Nitrile gloves, safety glasses, overalls, safety shoes, and an organic vapour/particulate respirator compliant with AS/NZS 1715 and AS/NZS 1716.
What are the hazard classifications for this product? → Dangerous Goods Class 3 (flammable liquid); GHS signal word Danger; classified as skin irritant, eye irritant, skin sensitiser, suspected reproductive toxicant, and capable of organ damage through repeated exposure.

Product overview

Selleys Plasti-Bond Heavy Duty Bog Resin is a two-pack polyester putty system built for filling holes and cracks in building materials. Manufactured by Selleys, a division of DuluxGroup Australia Pty Ltd, it's aimed at trade professionals and capable DIYers who need a high-strength result. The resin component is a grey paste with a characteristic odour and is insoluble in water — water-based cleanup won't work here.

The "two-pack" part is the most important thing to understand before buying or using this product. Plasti-Bond Heavy Duty Bog Resin is not a ready-to-use filler. It must be combined with its dedicated Plasti-Bond Hardener to start the curing reaction. Without hardener, the resin simply stays as paste — it will not set. That two-pack system is what gives the cured product its strength and durability. The chemical reaction between resin and hardener produces a rigid, stable fill that is considerably stronger than single-component fillers or standard wall putties. That strength is the point.

How the two-pack system works

Understanding the chemistry behind Plasti-Bond means you use it correctly and get consistent results every time.

Resin and hardener: why both are required

On their own, the polyester compounds in the resin stay in paste form indefinitely. The hardener — sold separately as the dedicated Plasti-Bond Hardener — contains a peroxide-based catalyst that triggers a crosslinking reaction when combined with the resin. That reaction causes the mixture to harden from the inside out, producing a solid, load-bearing fill.

This is a fundamentally different process from air-drying fillers, which simply lose moisture and shrink slightly as they cure. Because Plasti-Bond cures through a chemical reaction rather than evaporation, it doesn't shrink significantly. That dimensional stability is a key reason it's the preferred choice for structural filling applications where accuracy matters and where the result needs to last.

Mixing ratio and pot life

The correct ratio of resin to hardener is critical. Too little hardener produces an under-cured, soft fill. Too much causes the mixture to cure too rapidly, generating excess heat and potentially cracking. Always follow the mixing ratio specified on the product label and hardener packaging. Once mixed, working time — pot life — is limited, typically a matter of minutes depending on ambient temperature. Warmer conditions accelerate the cure; cooler conditions extend working time. Mix only as much as you can apply within the working window.

Applications and suitable substrates

Plasti-Bond Heavy Duty Bog Resin bonds to a wide range of common building materials:

Holes and cracks in timber, including structural and framing timber
Fibrous cement sheeting and boards
Masonry surfaces including brick and concrete where a rigid fill is required
Metal surfaces when properly prepared

The product is not water-soluble and, once cured, holds up to moisture — making it a sound choice where the filled area may be exposed to humidity or incidental water contact. It's not a waterproofing product, and sustained immersion or direct water exposure should be avoided unless the cured surface is subsequently sealed or painted.

For best adhesion, surfaces must be clean, dry, and free from dust, grease, and loose material before application. Any paint or coating that is flaking or poorly bonded must come off before you fill. The filler performs to its full potential only when it bonds directly to a sound substrate.

Preparation and application

Surface preparation

Thorough preparation is the single most important factor in getting a durable result with any two-pack filler.

Clean the substrate. Remove all dirt, grease, oil, and contaminants. Use an appropriate cleaner for the surface type — sugar soap for painted surfaces, degreaser for metal.
Remove loose material. Undercut cracks and holes slightly where possible to create a mechanical key for the filler.
Dry the surface. The substrate must be dry. Moisture trapped beneath the filler compromises adhesion and causes the fill to break down over time.
Sand if required. Lightly sanding smooth surfaces improves mechanical adhesion and gives the filler something to grip.

Mixing

Work in a well-ventilated area before you begin mixing. The resin produces organic vapours during mixing and application — see the Safety section below.

Dispense the required quantity of resin onto a clean, non-porous mixing board. A piece of hardboard or a plastic mixing palette works well.
Add the hardener in the correct ratio as specified on the label.
Mix thoroughly using a clean, flat-bladed tool, folding the mixture from the edges to the centre. No streaks of unmixed hardener should remain — streaks mean incomplete mixing and will produce soft spots in the cured fill.
Work quickly once mixed. Pot life is limited and the clock starts the moment resin meets hardener.

Application

Apply the mixed filler to the prepared surface using a filling knife or spreader, pressing firmly to ensure full contact with the substrate and to eliminate air voids. Slightly overfill the area — the material sands back cleanly to a flush finish once cured. For deep holes, apply in layers, allowing each layer to cure before applying the next. This prevents heat build-up from a thick mass of rapidly curing material and gives you better control over the finished surface.

Sanding and finishing

Once cured — typically within 20–30 minutes depending on temperature and mix ratio, though always verify with current product labelling — the filled area is ready to sand. Plasti-Bond sands cleanly to a smooth surface that takes paint and coatings well. Work through progressively finer grades of sandpaper, starting coarser to remove the bulk and finishing fine. The cured filler accepts most standard paint systems.

Safety considerations

Plasti-Bond Heavy Duty Bog Resin carries significant hazard classifications that every user must understand before handling the product. This is a high-performance chemical system — treat it accordingly.

Hazard classifications

The product is classified as Dangerous Goods Class 3, meaning it is a flammable liquid. Keep it away from ignition sources, open flames, sparks, and heat during storage and use. Do not use near pilot lights, welding equipment, or other ignition sources.

Additional hazard classifications include:

Skin and eye irritant. Direct contact with the uncured resin causes irritation to skin and eyes.
Skin sensitiser. Repeated or prolonged skin contact causes sensitisation — over time, even minor exposure can trigger an allergic reaction. This risk increases with repeated use, which makes consistent PPE use essential, not optional.
Suspected reproductive toxicant. The product contains compounds suspected of causing reproductive harm. Users who are pregnant or planning pregnancy must exercise particular caution.
Organ damage through repeated exposure. Chronic or repeated exposure to the product's vapours or components causes organ damage. Adequate ventilation and respiratory protection are non-negotiable.

The signal word for this product is Danger — the highest level under the Globally Harmonised System (GHS) of hazard classification, indicating serious hazards.

Required personal protective equipment (PPE)

The following PPE is required when handling Plasti-Bond Heavy Duty Bog Resin:

Nitrile gloves. Nitrile provides appropriate chemical resistance to the resin's components. Latex or vinyl gloves are not adequate substitutes.
Safety glasses. Protection against splashes of uncured resin.
Overalls. Full skin and clothing protection from contact with the resin.
Safety shoes. Closed footwear to protect feet from spills.
Organic vapour/particulate respirator. This is a critical requirement. The respirator must comply with AS/NZS 1715 (Selection, Use and Maintenance of Respiratory Protective Equipment) and AS/NZS 1716 (Respiratory Protective Devices). A standard dust mask is not sufficient — an organic vapour cartridge is required to protect against chemical vapours from the resin. When sanding the cured product, a particulate filter is also required.

Ventilation

Always work in a well-ventilated area. Outdoors is ideal. If working indoors, ensure cross-ventilation with fresh air. Do not use in confined, unventilated spaces.

First aid

Skin contact: Remove contaminated clothing and wash affected skin thoroughly with soap and water.
Eye contact: Immediately flush eyes with clean water for at least 15 minutes and seek medical attention.
Inhalation: Move to fresh air immediately. If symptoms persist, seek medical attention.
Ingestion: Do not induce vomiting. Seek immediate medical attention and contact the Poisons Information Centre (Australia: 13 11 26).

Storage and handling

Storage requirements

As a Dangerous Goods Class 3 flammable liquid, Plasti-Bond Heavy Duty Bog Resin must be stored in accordance with applicable dangerous goods regulations:

Store in a cool, dry, well-ventilated location away from direct sunlight and heat sources.
Keep away from ignition sources and oxidising agents.
Store in the original, tightly sealed container.
Keep out of reach of children.
Do not store near food, beverages, or animal feed.

Shelf life and container care

Check the product's use-by or best-before date before use. Resin that has exceeded its shelf life may not cure correctly even when mixed with fresh hardener. Replace the container lid tightly after each use to prevent the resin from skinning or absorbing moisture. If hardener gets into the resin container, the entire container will begin curing. Keep the container clean and sealed.

Disposal

Do not pour unused mixed or unmixed product down drains or into waterways. Cured material can generally be disposed of as solid waste, but uncured resin is a hazardous material. Contact your local council or waste authority for guidance on disposing of hazardous chemical waste. Many Australian councils operate chemical collection programs for household hazardous waste.

Tips for best results

Temperature matters. The ideal application temperature is between 10°C and 35°C. Below 10°C, curing slows significantly and adhesion is compromised. Above 35°C, pot life shortens dramatically. Know your conditions before you start.
Use a disposable mixing board, or one that can be cleaned immediately after use. Once the filler cures on a surface, removal is extremely difficult.
Mix slowly and deliberately to avoid whipping air into the mixture. Air bubbles in the applied filler create weak points in the cured fill.
Layer deep fills. For holes deeper than approximately 10 mm, build up in layers. This prevents exothermic heat build-up and allows better control over the finished surface.
Label your hardener. Always keep the Plasti-Bond Hardener clearly identified and stored separately from other hardeners. Using the wrong hardener results in a failed cure or unpredictable chemical reactions.
Clean tools immediately. Mixed filler cures quickly. Clean all tools with an appropriate solvent — check the product label for the recommended solvent — before the material hardens.

References

Frequently asked questions

What is Selleys Plasti-Bond Heavy Duty Bog Resin: A two-pack polyester putty filler system

Who manufactures Plasti-Bond Heavy Duty Bog Resin: Selleys, a division of DuluxGroup Australia Pty Ltd

Is Plasti-Bond Heavy Duty Bog Resin ready to use straight from the container: No, it requires mixing with hardener first

Why is a hardener required: Hardener triggers the chemical curing reaction

Is the hardener included in the resin purchase: No, Plasti-Bond Hardener is sold separately

What happens if you use the resin without hardener: It will not set or cure

What type of chemical system is this product: A two-pack polyester putty system

What colour is the resin component: Grey paste

Does the resin have an odour: Yes, it has a characteristic odour

Is the resin water-soluble: No, it is insoluble in water

Can you thin or clean up the resin with water: No, water-based cleanup is not suitable

What does the hardener contain: A peroxide-based catalyst compound

How does curing occur: Through a chemical crosslinking reaction between resin and hardener

Does Plasti-Bond shrink when curing: No, it does not shrink significantly during curing

Why does Plasti-Bond not shrink during curing: It cures via chemical reaction, not moisture evaporation

What is pot life: The limited working time after resin and hardener are mixed

Does temperature affect pot life: Yes, warmer conditions shorten pot life

Does cooler temperature extend pot life: Yes, cooler conditions extend working time

What is the ideal application temperature range: Between 10°C and 35°C

What happens below 10°C: Curing slows significantly and adhesion is compromised

What happens above 35°C: Pot life shortens dramatically

Can you mix more product than needed: No, mix only what you can apply within the working window

What surfaces is Plasti-Bond suitable for: Timber, fibrous cement, masonry, and metal

Is it suitable for structural timber: Yes

Is it suitable for fibrous cement sheeting: Yes

Is it suitable for brick and concrete: Yes

Is it suitable for metal surfaces: Yes, when properly prepared

Is the cured filler resistant to moisture: Yes, once cured it withstands moisture

Is Plasti-Bond a waterproofing product: No

Should cured filler be exposed to sustained water immersion: No, unless subsequently sealed or painted

Must surfaces be dry before application: Yes, the substrate must be dry

Why must surfaces be dry: Moisture compromises adhesion and causes fill breakdown

Must surfaces be free of grease before application: Yes

Should loose material be removed before filling: Yes

Does sanding smooth surfaces improve adhesion: Yes, it improves mechanical adhesion

Should cracks be undercut before filling: Yes, where possible, to create a mechanical key

What tool is recommended for mixing: A clean, flat-bladed mixing tool

What is a suitable mixing board: A non-porous surface such as hardboard or plastic palette

Can you leave streaks of unmixed hardener in the mix: No, streaks cause soft spots in the cured fill

Should the filler be slightly overfilled: Yes, it sands back to a flush finish once cured

How should deep holes be filled: In layers, allowing each layer to cure before applying the next

Why fill deep holes in layers: To prevent exothermic heat build-up

What is the maximum recommended single-layer depth before layering: Approximately 10 mm

How long does curing typically take: Approximately 20–30 minutes depending on temperature and mix ratio

Can the cured filler be sanded: Yes, it sands cleanly to a smooth surface

Does cured Plasti-Bond accept paint: Yes, it accepts most standard paint systems

What is the Dangerous Goods classification: Class 3, flammable liquid

What is the GHS signal word for this product: Danger

Is the product a skin irritant: Yes

Is the product an eye irritant: Yes

Is the product a skin sensitiser: Yes

Can repeated skin contact cause allergic reactions: Yes, sensitisation increases with repeated exposure

Is the product a suspected reproductive toxicant: Yes

Can repeated vapour exposure cause organ damage: Yes

What glove type is required: Nitrile gloves

Are latex gloves an adequate substitute: No

Are vinyl gloves an adequate substitute: No

Is eye protection required: Yes, safety glasses are required

Are overalls required: Yes, for full skin and clothing protection

Are safety shoes required: Yes, closed footwear is required

Is a respirator required: Yes, an organic vapour/particulate respirator

Is a standard dust mask sufficient respiratory protection: No

What Australian standards must the respirator comply with: AS/NZS 1715 and AS/NZS 1716

Is a particulate filter required when sanding cured filler: Yes

Must you work in a ventilated area: Yes, always

Is outdoor application ideal: Yes, outdoors is the ideal environment

What should you do if resin contacts skin: Remove contaminated clothing and wash with soap and water

What should you do if resin contacts eyes: Flush with clean water for at least 15 minutes then seek medical attention

What should you do if resin is inhaled: Move to fresh air immediately

Should vomiting be induced if the product is ingested: No

What number should be called for poisoning in Australia: 13 11 26

Must the product be stored away from ignition sources: Yes

Must the product be stored away from direct sunlight: Yes

Should the container lid be replaced tightly after use: Yes, to prevent skinning or moisture absorption

What happens if hardener enters the resin container: The entire container will begin curing

Can unused mixed product be poured down drains: No

Can cured material be disposed of as solid waste: Generally yes

Is uncured resin a hazardous material for disposal: Yes

How should hazardous waste be disposed of: Contact local council or waste authority for guidance

Should the Plasti-Bond Hardener be kept clearly labelled: Yes

Why must the correct hardener be used: Using the wrong hardener causes failed cure or unpredictable reactions

Should mixing introduce air bubbles: No, mix slowly to avoid air bubbles

Why must air bubbles be avoided: They create weak points in the cured fill

Should tools be cleaned immediately after use: Yes, before material hardens

What is used to clean tools: An appropriate solvent as specified on the product label

Label facts summary

Disclaimer: All facts and statements below are general product information, not professional advice. Consult relevant experts for specific guidance.

Verified label facts

Product name: Selleys Plasti-Bond Heavy Duty Bog Resin
Product type: Two-pack polyester putty system
Manufacturer: Selleys, a division of DuluxGroup Australia Pty Ltd
Resin appearance: Grey paste
Resin odour: Characteristic odour present
Water solubility: Insoluble in water; not suitable for water-based thinning or cleanup
System requirement: Must be combined with dedicated Plasti-Bond Hardener to cure; hardener sold separately
Hardener catalyst type: Peroxide-based compound
Curing mechanism: Chemical crosslinking reaction between resin and hardener
Shrinkage during cure: Does not shrink significantly during curing
Pot life behaviour: Limited working time after mixing; warmer conditions shorten pot life, cooler conditions extend it
Ideal application temperature range: 10°C to 35°C
Typical cure time: Approximately 20–30 minutes (subject to temperature and mix ratio; verify with current product labelling)
Suitable substrates: Timber, fibrous cement sheeting and boards, masonry (brick and concrete), metal (when properly prepared)
Dangerous Goods classification: Class 3 — Flammable Liquid
GHS signal word: Danger
Hazard classifications:
- Skin irritant
- Eye irritant
- Skin sensitiser (repeated/prolonged contact)
- Suspected reproductive toxicant
- Organ damage through repeated exposure (vapours/components)
Required PPE:
- Nitrile gloves (latex and vinyl not adequate substitutes)
- Safety glasses
- Overalls
- Safety shoes (closed footwear)
- Organic vapour/particulate respirator compliant with AS/NZS 1715 and AS/NZS 1716
- Particulate filter required when sanding cured material
Ventilation requirement: Well-ventilated area required; outdoors is ideal
First aid — skin contact: Remove contaminated clothing; wash with soap and water
First aid — eye contact: Flush with clean water for minimum 15 minutes; seek medical attention
First aid — inhalation: Move to fresh air immediately; seek medical attention if symptoms persist
First aid — ingestion: Do not induce vomiting; seek immediate medical attention; contact Poisons Information Centre (Australia: 13 11 26)
Storage requirements: Cool, dry, well-ventilated location; away from direct sunlight, heat sources, ignition sources, and oxidising agents; store in original tightly sealed container; keep out of reach of children; do not store near food, beverages, or animal feed
Disposal — mixed/unmixed product: Do not pour down drains or into waterways; uncured resin is a hazardous material; contact local council or waste authority
Disposal — cured material: Generally suitable for disposal as solid waste
Recommended layer depth before layering: Approximately 10 mm maximum per layer for deep fills
Respirator standards: AS/NZS 1715 (Selection, Use and Maintenance of Respiratory Protective Equipment); AS/NZS 1716 (Respiratory Protective Devices)
Safety Data Sheet reference: DuluxGroup SDS Reference SELGHSEN000285, Version 3.1, issued 29 April 2025

General product claims

Delivers professional results for trade professionals and capable DIYers
The chemical reaction between resin and hardener produces a fill considerably stronger than single-component fillers or standard wall putties
Dimensional stability makes it a practical choice for structural filling applications where accuracy matters
Correct mixing produces a solid, load-bearing fill
Sands cleanly to a smooth surface that accepts most standard paint systems
Overfilling and sanding back produces a flush, professional finish
Building up deep fills in layers prevents exothermic heat build-up and gives better control over the finished surface
Mixing slowly and deliberately avoids air bubbles that create weak points in the cured fill
Thorough surface preparation is the single most important factor in achieving a durable result
Using the wrong hardener results in a failed cure or unpredictable chemical reactions
Tools must be cleaned immediately after use with an appropriate solvent before material hardens

Selleys Plasti-Bond Heavy Duty Polyester Putty 11 product guide