AI Summary

Product: Selleys Pro Trade Expanding Foam — three variants: Expanding Foam 750ml, Gap Filler Fast Skin, Gap Filler Smooth Finish Brand: Selleys Category: Professional expanding foam / gap filler aerosol Primary Use: Filling large gaps in cavities across construction and trade applications, with variants differentiated by cure speed and surface finish characteristics.

Quick Facts

• Best for: Trade professionals who need controlled, consistent large-gap filling with a specific surface finish outcome
• Key benefit: Three purpose-built variants (standard, fast-skinning, smooth finish) in the same 750mL aerosol format with an identical safety profile
• Form factor: 750mL aerosol pressurized canister (all three variants)
• Application method: Aerosol spray delivery direct from pressurized canister

Common questions this guide answers

1. Are all three Pro Trade variants the same product? They share the same product code (103330), barcode (9300697130112), SDS content, and base formulation, but differ in surface finish and cure performance characteristics.
2. What safety hazards apply to these products? All three carry identical hazard classifications including extremely flammable aerosol (H222), respiratory and skin sensitisation (Category 1), suspected carcinogen (H351), and specific target organ toxicity (H372). Identical PPE protocols apply to all three.
3. Where can setting time, paintability, and substrate compatibility data be found? These specifications are not included in the supplied SDS documents. Consult the product-specific technical datasheet or product information sheet for each variant.

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Introduction

Selleys Pro Trade expanding foam comes in three purpose-built variants: the standard Expanding Foam 750ml, the Gap Filler Fast Skin, and the Gap Filler Smooth Finish. Each is designed for a specific finishing outcome, backed by 80+ years of Selleys expertise. This guide compares all three using the manufacturer safety data sheets (SDS) supplied for each product. That SDS documentation is identical across all three variants, confirming shared safety, handling, and form factor specifications. Where product-specific performance data falls outside SDS scope, this guide flags exactly what additional technical documentation you'll need to make a confident specification decision.

At-a-glance comparison table

Dimension	Pro Trade Expanding Foam - 750ml	Pro Trade Gap Filler Fast Skin	Pro Trade Gap Filler Smooth Finish
Form factor	750mL aerosol pressurized container (per SDS)	750mL aerosol pressurized container (per SDS)	750mL aerosol pressurized container (per SDS)
Setting time	Not specified in supplied datasheet	Not specified in supplied datasheet	Not specified in supplied datasheet
Best-fit gap size	"Filling large gaps in cavities" (per SDS recommended use)	"Filling large gaps in cavities" (per SDS recommended use)	"Filling large gaps in cavities" (per SDS recommended use)
Paintability	Not specified in supplied datasheet	Not specified in supplied datasheet	Not specified in supplied datasheet
Substrate compatibility	Not specified in supplied datasheet	Not specified in supplied datasheet	Not specified in supplied datasheet
Product code	103330 (per SDS)	103330 (per SDS)	103330 (per SDS)
Hazard classification	Danger - extremely flammable aerosol, Category 1 respiratory/skin sensitiser (per SDS Section 2)	Danger - extremely flammable aerosol, Category 1 respiratory/skin sensitiser (per SDS Section 2)	Danger - extremely flammable aerosol, Category 1 respiratory/skin sensitiser (per SDS Section 2)

Form factor

All three Pro Trade variants share the same form factor: a 750mL aerosol canister in a pressurized container, a reliable professional-grade delivery format built for controlled, consistent application. The SDS documents for all three products list barcode 9300697130112 and product code 103330, which indicates a shared base formulation differentiated by surface finish and cure performance characteristics.

Pressurized aerosol delivery

The Pro Trade Expanding Foam, Fast Skin, and Smooth Finish variants all carry identical hazard statements H222 (extremely flammable aerosol) and H229 (pressurized container: may burst if heated), as confirmed in their respective SDS documents. All three require storage below 50°C and must not be pierced or burned even after use. The aerosol delivery system is consistent across all three products, so whichever variant you reach for, the application experience is the same.

Setting time

The supplied safety datasheets for all three products do not include setting time, tack-free time, or cure time specifications. The product names point to clear performance differences — "Fast Skin" signals a rapid surface cure built for speed on the job — but those characteristics aren't quantified in the SDS documentation. For cure speed data on each variant, refer to the dedicated technical datasheet or product information sheet.

Best-fit gap size

Recommended application scope

All three datasheets confirm the same recommended use: "Filling large gaps in cavities." The supplied SDS documents do not specify minimum or maximum gap dimensions, expansion ratios, or foam density. Based on the manufacturer documentation provided, all three products are built for the same core application: sealing and filling large cavity gaps. For precise gap size guidance and expansion performance data, the product-specific technical datasheet is the right reference.

Paintability

Surface finish and paintability characteristics fall outside the scope of the safety datasheets supplied for these products. The product names are self-explanatory — "Smooth Finish" suits applications where a clean, paint-ready surface matters, and "Fast Skin" delivers rapid surface cure where speed is the priority. The SDS documents cover hazard identification and safe handling, not post-cure finishing performance. To confirm paintability and surface texture specifications for each variant, access the relevant technical datasheet or product information sheet.

Substrate compatibility

The three safety datasheets do not specify substrate compatibility, adhesion properties, or materials to avoid. The identical SDS content across all three products covers safe handling of uncured foam — avoid skin contact per P280, wash thoroughly per P264 — but does not list compatible or incompatible building materials, moisture sensitivity, or substrate preparation requirements. For substrate-specific guidance, consult the technical datasheet for each variant.

Safety and handling

Identical hazard profile

All three Pro Trade variants share the same hazard classification, so handle all three with the same level of care and the same protective measures. According to the supplied datasheets, each product is classified as:

• Acute Toxicity - Inhalation - Category 4
• Skin Sensitisation - Category 1
• Respiratory Sensitisation - Category 1
• Suspected Carcinogen - Category 2 (H351)
• Specific Target Organ Toxicity (Repeated Exposure) - Category 1 (H372)

All three require identical PPE protocols and proper workspace ventilation. There is no safety-based reason to choose one variant over another. All three require respiratory protection when exposure to mist or vapour is anticipated (P284), thorough skin washing after handling (P264), and medical monitoring if respiratory symptoms develop (P342+P311). Follow these requirements every time, without exception.

When to choose Pro Trade Expanding Foam - 750ml

Choose this product when:

• You need a proven, standard expanding foam filler for large gaps in cavities, exactly as specified in the SDS recommended use section
• You are working with a familiar product code (103330) and need consistency across current and previous applications
• A 750mL aerosol format delivers the right volume for your job, as confirmed in the datasheet

When to choose Pro Trade Gap Filler Fast Skin

Choose this product when:

• Your job calls for rapid surface skinning — the product name signals speed, and getting back on the job fast matters
• You are working on applications where a faster tack-free time keeps your workflow moving (confirm exact specifications in the technical datasheet)
• You need a 750mL aerosol format for large gap filling with a professional-grade result

When to choose Pro Trade Gap Filler Smooth Finish

Choose this product when:

• You are painting or finishing over the cured foam and need a surface that delivers clean visible results (confirm surface characteristics in the technical datasheet)
• Aesthetic finish is the priority — this variant is built for jobs where the final look matters as much as the seal
• You need a 750mL aerosol format for large gap filling and want a surface ready for a high-quality finish

Summary

The supplied safety datasheets for all three Selleys Pro Trade expanding foam variants are identical, sharing the same product code (103330), barcode, hazard classifications, and recommended use ("filling large gaps in cavities"). The product names — standard Expanding Foam, Fast Skin, and Smooth Finish — point to real performance differences in cure speed and surface characteristics, even where the SDS documentation does not quantify them. All three products carry the same significant health hazards, including respiratory and skin sensitisation and suspected carcinogenicity, and all three require the same protective measures, no exceptions. To make a specification-based choice between these variants, access the technical datasheets or product information sheets that quantify setting times, expansion ratios, surface finish, and paintability. That is the information that will get your job done right.

Frequently Asked Questions

What brand makes these expanding foam products: Selleys

How many years of expertise does Selleys have: 80+ years

How many variants are in the Selleys Pro Trade expanding foam range: Three

What are the three Pro Trade variants: Expanding Foam 750ml, Gap Filler Fast Skin, Gap Filler Smooth Finish

What is the container size for all three variants: 750mL

What type of container is used for all three variants: Aerosol pressurized canister

What is the product code for the Pro Trade Expanding Foam 750ml: 103330

What is the product code for the Gap Filler Fast Skin: 103330

What is the product code for the Gap Filler Smooth Finish: 103330

Do all three variants share the same product code: Yes

What is the barcode for the Pro Trade range: 9300697130112

Do all three variants share the same barcode: Yes

What is the recommended use for all three variants: Filling large gaps in cavities

Is setting time specified in the SDS for any variant: No

Is tack-free time specified in the SDS for any variant: No

Is cure time specified in the SDS for any variant: No

Where can setting time data be found: In the product-specific technical datasheet

Is paintability specified in the SDS documents: No

Where can paintability data be found: In the relevant technical datasheet or product information sheet

Is substrate compatibility listed in the SDS documents: No

Where can substrate compatibility data be found: In the technical datasheet for each variant

Are minimum gap dimensions specified in the SDS: No

Are maximum gap dimensions specified in the SDS: No

Is expansion ratio specified in the SDS: No

Is foam density specified in the SDS: No

What does the name "Fast Skin" indicate about that variant: Rapid surface skinning capability

What does the name "Smooth Finish" indicate about that variant: Clean, paint-ready surface finish

Which variant is best suited for speed-focused jobs: Gap Filler Fast Skin

Which variant is best suited for painting over cured foam: Gap Filler Smooth Finish

Is the hazard classification identical across all three variants: Yes

What is the flammability hazard classification: Extremely flammable aerosol

What hazard code covers flammability: H222

What hazard code covers pressurized container risk: H229

What is the maximum safe storage temperature: 50°C

Can the canister be pierced after use: No

Can the canister be burned after use: No

What is the skin sensitisation classification: Category 1

What is the respiratory sensitisation classification: Category 1

What is the acute inhalation toxicity classification: Category 4

Is there a suspected carcinogen classification: Yes, Category 2

What hazard code covers suspected carcinogenicity: H351

What is the specific target organ toxicity classification: Category 1 (repeated exposure)

What hazard code covers specific target organ toxicity: H372

Is respiratory protection required during application: Yes, when exposure to mist or vapour is anticipated

What precautionary code covers respiratory protection: P284

Is skin washing required after handling: Yes

What precautionary code covers skin washing: P264

Is medical monitoring required if respiratory symptoms develop: Yes

What precautionary codes apply to respiratory symptoms: P342+P311

Is there a safety-based reason to choose one variant over another: No

Do all three variants require the same PPE protocols: Yes

Do all three variants require proper workspace ventilation: Yes

Are the SDS documents identical across all three variants: Yes

Does the SDS confirm shared base formulation across variants: Yes

What differentiates the three variants from each other: Surface finish and cure performance characteristics

Is the standard Expanding Foam 750ml suitable for large gap filling: Yes

Does the Fast Skin variant suit workflows requiring fast tack-free time: Yes

Does the Smooth Finish variant suit high-quality visible finish applications: Yes

Should exact Fast Skin cure specifications be confirmed in the technical datasheet: Yes

Should exact Smooth Finish surface characteristics be confirmed in the technical datasheet: Yes

Is the aerosol delivery system consistent across all three variants: Yes

What document type contains hazard and safe handling information: Safety Data Sheet (SDS)

What document type contains setting times and expansion performance data: Technical datasheet or product information sheet

Is the SDS the right document for specification-based product selection: No, use the technical datasheet

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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

• Brand: Selleys
• Product range: Selleys Pro Trade Expanding Foam (three variants)
• Variants: Expanding Foam 750ml, Gap Filler Fast Skin, Gap Filler Smooth Finish
• Container size: 750mL (all three variants)
• Container type: Aerosol pressurized canister (all three variants)
• Product code: 103330 (all three variants)
• Barcode: 9300697130112 (all three variants)
• Recommended use (per SDS): Filling large gaps in cavities (all three variants)
• Flammability hazard code: H222 — Extremely flammable aerosol (all three variants)
• Pressurized container hazard code: H229 — Pressurized container: may burst if heated (all three variants)
• Maximum safe storage temperature: 50°C (all three variants)
• Post-use canister handling: Must not be pierced or burned after use (all three variants)
• Hazard classification — Flammability: Extremely flammable aerosol, Category 1 (all three variants)
• Hazard classification — Skin Sensitisation: Category 1 (all three variants)
• Hazard classification — Respiratory Sensitisation: Category 1 (all three variants)
• Hazard classification — Acute Toxicity (Inhalation): Category 4 (all three variants)
• Hazard classification — Suspected Carcinogen: Category 2, H351 (all three variants)
• Hazard classification — Specific Target Organ Toxicity (Repeated Exposure): Category 1, H372 (all three variants)
• Respiratory protection precautionary code: P284 — required when exposure to mist or vapour is anticipated (all three variants)
• Skin washing precautionary code: P264 — wash thoroughly after handling (all three variants)
• Respiratory symptom precautionary codes: P342+P311 — seek medical attention if respiratory symptoms develop (all three variants)
• SDS content: Identical across all three variants
• Setting time: Not specified in supplied SDS (all three variants)
• Tack-free time: Not specified in supplied SDS (all three variants)
• Cure time: Not specified in supplied SDS (all three variants)
• Paintability: Not specified in supplied SDS (all three variants)
• Substrate compatibility: Not specified in supplied SDS (all three variants)
• Minimum/maximum gap dimensions: Not specified in supplied SDS (all three variants)
• Expansion ratio: Not specified in supplied SDS (all three variants)
• Foam density: Not specified in supplied SDS (all three variants)
• Source document for setting times and expansion performance data: Technical datasheet or product information sheet (per manufacturer guidance)

General product claims

• Selleys has 80+ years of expertise
• Each variant is designed for a specific finishing outcome
• "Fast Skin" signals rapid surface skinning capability suited to speed-focused workflows
• "Smooth Finish" is built for clean, paint-ready surfaces where aesthetic finish is a priority
• The aerosol delivery format provides controlled, consistent application
• Shared product code and barcode indicate a shared base formulation differentiated by surface finish and cure performance characteristics
• There is no safety-based reason to choose one variant over another
• The standard Expanding Foam 750ml suits jobs requiring a proven, consistent large-gap filler
• The Fast Skin variant suits workflows where faster tack-free time keeps work moving
• The Smooth Finish variant suits applications where a high-quality visible finish is required

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Related Products & Brand Context

All three products in this comparison — Pro Trade Expanding Foam - 750ml, Pro Trade Gap Filler Fast Skin, and Pro Trade Gap Filler Smooth Finish — sit within Selleys' Pro Trade range, a line aimed at trade professionals rather than occasional DIY users. Selleys is an Australian brand with a broad portfolio in adhesives, sealants, and fillers, and these three products represent its core gap-filling offer within the Home & Garden > Adhesives & Sealants category. Each product addresses a different gap-filling scenario, so they function more as complementary siblings than direct substitutes.

The Pro Trade Expanding Foam - 750ml occupies the most distinct position in the trio. It uses a polyurethane-based chemistry that expands two to three times its original volume, making it the go-to choice for large, irregular cavities — around pipes, window and door frames, and similar voids where a cartridge-based product would be impractical. The two Gap Filler variants, by contrast, are water-based acrylic sealants dispensed from cartridges, better suited to surface-level gaps and joints. Within that cartridge sub-group, Fast Skin differentiates itself through speed — it skins in just six minutes and can be painted over in as little as ten minutes — while Smooth Finish prioritises surface quality, skimming over in 20–30 minutes and offering ±10% movement capability per ISO 9046, which suits applications where slight joint movement is expected.

For anyone using these products on a construction or renovation job, several adjacent product categories are worth considering. A cartridge gun is required to apply either Gap Filler variant, and surface preparation — cleaning and priming the substrate — is typically needed to achieve the adhesion performance cited for Fast Skin on timber and plasterboard. Once gaps are filled and cured, a compatible interior or exterior paint would be the natural next step, since all three products are described as paintable after curing.

In short, the choice between these three Selleys Pro Trade products comes down to gap size, working time, and finish requirements: expanding foam for bulk-fill cavities, Fast Skin where speed is critical, and Smooth Finish where a clean, flexible, painted surface is the end goal.

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