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Selleys Plasti-Bond Heavy Duty Polyester Putty 12 product guide

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 masonry, concrete, fibre cement, timber, and MDF.

Quick Facts

  • Best For: Tradespeople and capable DIYers who need a high-strength, durable repair in areas subject to mechanical stress, moisture, or environmental exposure
  • Key Benefit: Water-insoluble once cured — will not re-soften or break down when exposed to moisture
  • Form Factor: Thick grey paste (requires mixing with dedicated Plasti-Bond Hardener before use)
  • Application Method: Mix resin with dedicated hardener, apply with filling knife or spreader to prepared surface, overfill slightly, sand back once cured

Common Questions This Guide Answers

  1. Does this product cure on its own? → No — it must be combined with the dedicated Plasti-Bond Hardener to trigger the polymerisation reaction that produces a hard, durable repair.
  2. 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.
  3. What are the hazard classifications for this product? → Dangerous Goods Class 3 (flammable liquid); GHS signal word Danger; classified as a skin and eye irritant, skin sensitiser, suspected reproductive toxicant, and potential cause of organ damage through repeated exposure.

Product Overview

Selleys Plasti-Bond Heavy Duty Bog Resin is a two-pack polyester putty system for filling holes and cracks in building materials. Made by Selleys, a division of DuluxGroup Australia Pty Ltd, it's a high-strength, multipurpose filler that delivers professional results for tradespeople and capable DIYers who won't cut corners on a repair.

The product comes as a grey paste with a noticeable chemical odour. It's insoluble in water — once cured, it won't re-soften or break down when exposed to moisture, which makes it the right call for repairs in areas that regularly face humidity or incidental water contact. The resin on its own stays inactive. It must always be combined with the dedicated Plasti-Bond Hardener to kick off the chemical curing reaction that gives the finished repair its strength and durability.

Knowing what this product is — and what it needs — sets you up for success the first time. This guide covers everything you need to use Plasti-Bond Heavy Duty Bog Resin safely and get the results you're after.

How the two-pack system works

Plasti-Bond Heavy Duty Bog Resin is a two-pack system — two separate components that you mix together before use:

  1. The Resin — the grey paste covered in this guide
  2. The Hardener — the dedicated Plasti-Bond Hardener, sold separately or as part of a kit

When you combine the resin and hardener, a chemical reaction called polymerisation begins. That reaction transforms the soft, workable paste into a hard, solid material that bonds firmly to the substrate. Without the hardener, the resin stays soft indefinitely — it will never cure on its own.

Why the dedicated hardener matters

Use only the dedicated Plasti-Bond Hardener with this resin. Polyester putty systems are formulated so the resin and hardener are chemically matched. Using a different hardener — even one that looks similar — can result in an incomplete cure, poor adhesion, or a structurally weak repair. Always source the correct Plasti-Bond Hardener when you purchase the resin.

The mixing ratio between resin and hardener controls both your working time — the window you have to apply the material before it starts to set — and the final hardness of the cure. Follow the mixing instructions on the product packaging or the accompanying technical data sheet.

Key properties and what they mean

Form factor: grey paste

The resin comes as a thick grey paste. That consistency makes it easy to apply to vertical and overhead surfaces without excessive sagging before the cure begins. The grey colour also gives you a clear visual guide during mixing — thorough mixing shows up as a uniform colour throughout the blended material, with no streaks of unmixed resin visible. No streaks means a strong, consistent cure.

Water insolubility

Because the product is insoluble in water, the cured repair won't re-soften or swell when exposed to moisture. That's a real practical advantage in building repair work, where surfaces regularly face condensation, cleaning, or rain exposure. It holds up where other fillers fall short.

Characteristic odour

The resin has a noticeable chemical odour, a direct result of the volatile organic compounds (VOCs) in the formulation. This is directly relevant to ventilation requirements during use and the PPE requirements covered in the Safety section below.

Practical applications

Plasti-Bond Heavy Duty Bog Resin is a multipurpose filler built for building materials. Its high-strength cure delivers better performance than standard gap fillers or lightweight spackling compounds in applications where durability and adhesion actually matter. Typical applications include:

  • Filling holes and cracks in masonry, concrete, fibre cement, and similar building substrates
  • Repairing damaged sections of building panels or sheeting
  • Filling voids in timber, MDF, or other structural materials prior to painting or finishing

The "heavy duty" designation means exactly what it says. This product handles repairs subject to mechanical stress, load, or environmental exposure — the tough jobs where a weaker filler would crack, crumble, or pull away over time.

Preparation and application guidance

Surface preparation

Proper surface preparation is the single most important step in getting a strong, lasting repair with any polyester putty. Before applying Plasti-Bond Heavy Duty Bog Resin:

  • Clean the surface thoroughly. Remove all dust, dirt, grease, oil, loose paint, and any other contaminants. Contaminants between the filler and the substrate are the most common cause of adhesion failure — eliminate them completely.
  • Mechanically abrade the repair area where possible. Roughening the surface with coarse sandpaper increases the mechanical bond between the filler and the substrate.
  • Make sure the surface is dry. While the cured product is water-insoluble, applying the resin to a wet or damp surface will undermine adhesion.

Mixing

Once the surface is ready, measure out the correct quantities of resin and hardener according to the manufacturer's specified ratio. Mix thoroughly on a clean, non-absorbent surface — a piece of scrap board or a mixing palette works well — using a clean mixing tool. Mix until the colour is completely uniform. Streaking means incomplete mixing, which leads to soft spots or areas that don't cure properly.

Work with purpose. Once mixed, the material has a limited pot life before it begins to harden. Don't mix more than you can apply within the working window.

Application

Apply the mixed filler to the prepared surface using a filling knife or spreader. Press firmly to ensure full contact with the substrate and push out any air pockets. Slightly overfill the repair area — the material sands back cleanly once cured. Smooth the surface as well as you can during application to keep the finishing work to a minimum.

Curing and finishing

Allow the repair to cure fully before sanding or applying any topcoat. Curing time varies depending on the mixing ratio, ambient temperature, and humidity. Warmer temperatures speed up the cure; cooler temperatures slow it down. Once hard, the cured filler sands, shapes, and paints to a result that matches the surrounding surface.

Safety considerations

Plasti-Bond Heavy Duty Bog Resin carries serious hazard classifications that every user needs to understand before handling the product. The Safety Data Sheet (SDS), reference number SELGHSEN000285, issued 29 April 2025 (Version 3.1), is the primary safety document for this product. Read it in full before you start.

Hazard classifications

The resin is classified as Dangerous Goods Class 3 — it's a flammable liquid. Keep it away from ignition sources, including open flames, sparks, and heat, during both storage and use.

Beyond flammability, the product carries the following health hazard classifications:

  • Skin and eye irritant — direct contact with skin or eyes causes irritation and must be avoided
  • Skin sensitiser — repeated or prolonged skin contact can cause sensitisation, meaning the skin may develop an allergic reaction to the product over time
  • Suspected reproductive toxicant — the product contains substances suspected of causing harm to reproductive health
  • Organ damage through repeated exposure — prolonged or repeated exposure may cause damage to specific organs

The GHS signal word for this product is Danger — the highest level under the Globally Harmonised System of hazard classification. The hazards are serious. Treat them accordingly.

Required personal protective equipment (PPE)

Given these hazard classifications, appropriate PPE is not optional — it's required. Wear the following whenever you handle, mix, or apply Plasti-Bond Heavy Duty Bog Resin:

  • Nitrile gloves — to protect skin from direct contact with the resin. Standard latex gloves don't provide adequate chemical resistance for polyester resins.
  • Safety glasses — to protect eyes from splashes
  • Overalls — to protect skin and clothing from contact
  • Safety shoes — to protect feet from spills
  • Organic vapour/particulate respirator — to protect against inhalation of vapours and any particulates generated during mixing or sanding. The respirator must comply with AS/NZS 1715 (Selection, use and maintenance of respiratory protective equipment) and AS/NZS 1716 (Respiratory protective devices)

Ventilation

Because the product is a flammable liquid with VOC content, always work in a well-ventilated area. Don't work in enclosed spaces without adequate airflow, even when wearing a respirator.

Storage and handling

Store the resin away from heat sources, open flames, and direct sunlight. Keep the container tightly sealed when not in use — this prevents evaporation of volatile components and protects the product's shelf life. Store in a cool, dry location, away from incompatible materials.

Expert tips and best practices

  • Mix only what you need. Pot life is limited once resin and hardener are combined. Develop a clear sense of how much mixed filler a given repair requires before committing to a large mix.
  • Temperature affects working time. In hot weather, the mixed filler sets faster; in cold weather, curing slows down. Plan your application around the conditions, and avoid working in extreme temperatures where possible.
  • Sand between coats when building up. For deep repairs requiring multiple applications, let each layer cure fully before applying the next. Sanding between layers delivers stronger intercoat adhesion and a better finished result.
  • Label and date opened containers. Once opened, the shelf life of the resin may be reduced. Note the opening date and use the product within the manufacturer's recommended period.
  • Always use the hardener. Working quickly can lead to skipping this step — but uncured resin applied to a surface stays soft indefinitely and must be removed entirely before a proper repair is possible.
  • Read the full SDS before first use. The Safety Data Sheet (SDS reference SELGHSEN000285) contains complete hazard, first aid, and emergency response information. Every user should be across this before opening the product.

References

Frequently Asked Questions

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

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

What is the primary use of this product: Filling holes and cracks in building materials

Is this product suitable for DIYers: Yes, for capable DIYers

Is this product suitable for tradespeople: Yes

What colour is the resin paste: Grey

Does the resin have an odour: Yes, a characteristic chemical odour

What causes the odour: Volatile organic compounds (VOCs) in the formulation

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

Will the cured repair re-soften when wet: No

Can this product be used in humid areas: Yes

Does the resin cure on its own: No, it requires a hardener

What triggers the curing reaction: Combining the resin with the dedicated Plasti-Bond Hardener

What type of chemical reaction occurs during curing: Polymerisation

Can I use a different hardener with this resin: No, only the dedicated Plasti-Bond Hardener

Why must I use the dedicated hardener: Resin and hardener are chemically matched

What happens if I use the wrong hardener: Incomplete cure, poor adhesion, or structurally weak repair

What does the mixing ratio control: Both working time and final hardness of the cure

How do I know the resin and hardener are thoroughly mixed: The blended material shows a completely uniform colour with no streaks

What do streaks in the mixed material indicate: Incomplete mixing

What happens if the material is incompletely mixed: Soft spots or areas that do not cure properly

Is the hardener included with the resin: Sold separately or as part of a kit

What surfaces can this product be applied to: Masonry, concrete, fibre cement, timber, MDF, and building panels

Is this product suitable for vertical surfaces: Yes

Is this product suitable for overhead surfaces: Yes

Why is the paste consistency suited to vertical surfaces: Thick consistency resists excessive sagging before curing

What is the most important step for a strong repair: Proper surface preparation

Must the surface be clean before application: Yes, completely free of dust, dirt, grease, oil, and loose paint

Must the surface be dry before application: Yes

Should the surface be abraded before application: Yes, where possible

Why should the surface be abraded: To increase the mechanical bond between filler and substrate

What tool is recommended for applying the filler: A filling knife or spreader

Should the repair area be slightly overfilled: Yes

Why overfill the repair area: The material sands back cleanly once cured

Does the cured filler sand: Yes

Does the cured filler paint: Yes

Does temperature affect curing time: Yes

Does warmer temperature speed up curing: Yes

Does cooler temperature slow down curing: Yes

Should I mix more filler than I need: No, mix only what you can apply within the working window

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

What is the GHS signal word for this product: Danger

Is this product a skin irritant: Yes

Is this product an eye irritant: Yes

Is this product a skin sensitiser: Yes

What does skin sensitisation mean: Repeated exposure may cause an allergic skin reaction over time

Is this product a suspected reproductive toxicant: Yes

Can repeated exposure cause organ damage: Yes

What type of gloves are required: Nitrile gloves

Are latex gloves suitable for handling this product: No

Why are latex gloves not suitable: They do not provide adequate chemical resistance for polyester resins

Is eye protection required: Yes, safety glasses

Are overalls required when handling this product: Yes

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

What standard must the respirator comply with for selection and use: AS/NZS 1715

What standard must the respirator comply with for device specification: AS/NZS 1716

Is safety footwear required: Yes, safety shoes

Must the work area be ventilated: Yes, always work in a well-ventilated area

Can this product be used in enclosed spaces without airflow: No

What is the SDS reference number for this product: SELGHSEN000285

What is the SDS version number: Version 3.1

What is the SDS issue date: 29 April 2025

Should I read the SDS before first use: Yes

Must the product be kept away from ignition sources: Yes, including open flames, sparks, and heat

Should the container be kept sealed when not in use: Yes, tightly sealed

Why keep the container sealed: Prevents evaporation of volatile components and protects shelf life

Where should the product be stored: Cool, dry location away from heat, flames, and direct sunlight

Should deep repairs be built up in multiple layers: Yes

Should each layer cure fully before the next is applied: Yes

Should layers be sanded between coats: Yes, for stronger intercoat adhesion

Does the shelf life reduce after opening: Yes

Should opened containers be labelled with the opening date: Yes

Is this product classified as heavy duty: Yes

What makes this product heavy duty: Handles repairs subject to mechanical stress, load, or environmental exposure

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 filler system
  • Manufacturer: Selleys, a division of DuluxGroup Australia Pty Ltd
  • Primary use: Filling holes and cracks in building materials
  • Form: Grey paste
  • Odour: Characteristic chemical odour
  • Odour source: Volatile organic compounds (VOCs) in the formulation
  • Water solubility: Insoluble in water; cured product does not re-soften when exposed to moisture
  • Curing mechanism: Requires combination with dedicated Plasti-Bond Hardener; curing reaction is polymerisation
  • Hardener compatibility: Dedicated Plasti-Bond Hardener only; no substitute hardeners
  • Hardener availability: Sold separately or as part of a kit
  • Mixing indicator: Completely uniform colour with no streaks indicates thorough mixing
  • Dangerous Goods classification: Class 3 — Flammable Liquid
  • GHS signal word: Danger
  • Hazard classifications:
    • Skin irritant
    • Eye irritant
    • Skin sensitiser (repeated/prolonged contact may cause allergic skin reaction)
    • Suspected reproductive toxicant
    • Organ damage through repeated exposure
  • Required PPE:
    • Nitrile gloves (latex gloves not suitable — insufficient chemical resistance for polyester resins)
    • Safety glasses
    • Overalls
    • Safety shoes
    • Organic vapour/particulate respirator compliant with AS/NZS 1715 (selection, use and maintenance) and AS/NZS 1716 (respiratory protective devices)
  • Ventilation requirement: Well-ventilated area required; enclosed spaces without adequate airflow prohibited
  • Storage requirements: Cool, dry location; away from heat sources, open flames, and direct sunlight; container kept tightly sealed when not in use
  • Safety Data Sheet reference number: SELGHSEN000285
  • SDS version: 3.1
  • SDS issue date: 29 April 2025
  • Compatible substrates: Masonry, concrete, fibre cement, timber, MDF, building panels and sheeting
  • Surface application: Suitable for vertical and overhead surfaces
  • Curing time variables: Affected by mixing ratio, ambient temperature, and humidity; warmer temperatures accelerate cure, cooler temperatures slow cure
  • Shelf life: Reduced after opening; opened containers should be labelled with opening date

General product claims

  • Delivers professional results for tradespeople and capable DIYers
  • High-strength, multipurpose filler
  • Better performance than standard gap fillers or lightweight spackling compounds
  • Thick paste consistency resists excessive sagging on vertical and overhead surfaces before cure
  • Cured filler sands, shapes, and paints to a result matching the surrounding surface
  • Suitable for repairs subject to mechanical stress, load, or environmental exposure
  • Holds up where other fillers fall short in humid or moisture-exposed conditions
  • Proper surface preparation is the single most important step for a strong, lasting repair
  • Building up deep repairs in multiple layers with sanding between coats delivers stronger intercoat adhesion and a better finished result
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