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Rockwool High Expansion Intumescent Sealant 310ml
Nationwide Delivery
Thu 11 Jun
- 0days
- 9hrs
- 57mins
- 25secs
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- Choose PayPal at checkout to pay later with Pay in 3.
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- Remaining payments are taken automatically.
Pay in 3 is a form of credit, so carefully consider whether the purchase is affordable and how you will make the repayments. Be aware of the possible impact of using Pay in 3 and of missing payments, including making other borrowing more difficult or more expensive. Pay in 3 eligibility is subject to status and approval. 18+ UK residents only. Available for purchases of £30 to £2,000. Terms and conditions apply. PayPal Pay in 3 is a trading name of PayPal (Europe) S.à r.l. et Cie, S.C.A. 22-24 Boulevard Royal L-2449, Luxembourg.
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fourth payment
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- Choose Clearpay at checkout to pay later with Pay in 4.
- Complete your purchase with the first payment today.
- Remaining payments are taken automatically.
Clearpay is unregulated credit. Use responsibly. 18+, T&Cs and late fees apply at clearpay.co.uk/en-GB
Clearpay lends you a fixed amount of credit so you can pay for your purchase over 4 instalments, due every 2 weeks. Ensure you can make repayments on time. You must be 18+ and a permanent UK resident (excl Channel Islands). Clearpay charges a £6 late fee for each late instalment and a further £6 if it’s still unpaid 7 days later. Late fees are capped at £6 for orders under £24 and the lower of £24 or 25% of the order value for orders over £24. Missed payments may affect your ability to use Clearpay in the future and your details may be passed onto a debt collection agency working on Clearpay’s behalf. Clearpay is credit that is not regulated by the Financial Conduct Authority. T&Cs and other eligibility criteria apply at clearpay.co.uk/terms
Delivery & Returns Information
Delivery charges vary by product category and order value. Items may ship from different suppliers and arrive separately, so delivery charges can be shown per part of your order at checkout.
Standard (Nationwide) Delivery
| Insulation, Plasterboard and Drylining Products | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £45 ex. VAT |
| Over £400 ex. VAT | FREE |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £90 ex. VAT |
| Over £400 ex. VAT | £55 ex. VAT |
| Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £50 ex. VAT |
| Over £300 ex. VAT | £35 ex. VAT |
How delivery works
We work with a nationwide network of trusted suppliers. Items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you will see delivery charges shown at checkout for each part of your order. We always aim to group products from the same supplier to keep delivery costs as low as possible.
Delivery areas
Delivery charges apply to mainland UK, excluding: AB, CA, CF, DD, DG, EH, EX, FK, KA, KW, KY, IV, LA, LD, LL, ML, NP, PA, PH, PL, SA, SY, TR, TQ and TD.
If your address is in one of these areas, we will contact you before processing your order to confirm any additional costs. We do not currently offer delivery outside the UK mainland.
What to expect on delivery day
- Deliveries are typically kerbside.
- Please ensure someone is on-site to accept delivery. For heavier items, help with offloading may be required.
- Many building materials arrive on large vehicles. If access is restricted, a specialist vehicle such as a HIAB may be required and could incur an additional charge.
Why delivery can cost more than typical parcel delivery
Building materials often travel on larger vehicles and usually carry fewer drops per run than parcel networks. That is why delivery charges can be higher than standard e-commerce shipping.
Returns
Returns depend on what you have bought and whether there is anything wrong with it. For full details on eligibility, timeframes, and exclusions, please see our full policy.
Key Features
- {{local_fire_department}} Expands under heat to seal voids
- {{assignment}} Suitable for pipes, cables and penetrations
- {{fitness_center}} Closes and seals gaps under fire exposure
- {{shield}} Tested to reinstate fire integrity
Technical Specification
| URN: | 3007215 |
|---|---|
| Brand: | Rockwool |
| Sales Unit: | Each |
| Box Quantity: | 25 |
| Manufacturer's Reference: | 128086 |
Technical Downloads
Product Overview
Rockwool High Expansion Intumescent Sealant supplied in 310ml cartridges. Water-based acrylic emulsion sealant containing graphite, designed to reinstate fire resistance and insulation performance in compartment walls and floors where they are penetrated by building services.
The sealant expands under heat to seal voids left by combustible materials, preventing the passage of flames, smoke, and hot gases during fire conditions.
Formulated for use with both combustible and non-combustible services, the sealant provides a reliable, high-expansion barrier for pipes, cables, and insulated metalwork. It reacts at approximately 135°C, rapidly increasing in volume to close openings and restore fire integrity.
Supplied in easy-to-apply 310ml cartridges, it is suitable for both horizontal and vertical applications, ensuring consistent performance across tested wall and floor constructions.
Features & Benefits
- High expansion performance: Graphite-based intumescent formula expands at 135°C to close gaps and seal penetrations under fire exposure.
- Versatile use: Effective around combustible pipes, single cables, cable bundles, and metal pipes with combustible insulation.
- System compatibility: Suitable for use in both wall and floor applications across multiple substrates.
- Ease of application: Ready-to-use, one-part sealant supplied in 310ml cartridges for standard applicator guns.
- Fire reinstatement: Restores the integrity and insulation performance of compartment walls and floors penetrated by services.
- Material compatibility: Fully compatible with cPVC pipes and a wide range of building materials.
Applications
- Combustible pipes: Expands to close voids around plastic and composite service penetrations.
- Cables and cable bunches: Provides a flexible fire seal around grouped electrical services.
- Metal pipes with combustible insulation: Seals annular spaces to maintain compartment integrity.
- Multi-service penetrations: Suitable for use in mixed penetrations containing various pipe and cable types.
Installation Guidance
- Preparation: Ensure all surfaces are clean, dry, and free from oil, dust, or loose particles.
- Application: Apply using a standard mastic or sealant gun, ensuring full contact with surrounding materials.
- Depth control: For larger gaps, use appropriate backing material before sealing to maintain correct joint depth.
- Finishing: Smooth surface with a wet spatula or gloved finger within 10 minutes of application.
- Curing: Allow sealant to fully cure before exposure to water or overpainting.
- Storage: Store in original containers in cool, dry conditions above 5°C and away from frost.
Compliance & Performance
- Material specification: Water-based acrylic emulsion containing graphite intumescent additives.
- Fire performance: Tested to reinstate fire integrity and insulation ratings in accordance with BS EN 1366-3 and BS EN 1366-4.
- Reaction temperature: Expands at approximately 135°C to provide a high-volume pressure seal.
- Compatibility: Suitable for combustible and non-combustible services, including cPVC pipes.
- Application orientation: Approved for both wall and floor sealing applications.
- Environmental compliance: Water-based formulation, halogen-free, and low-VOC.
- Important note: Fire performance is dependent on installation within tested and approved Rockwool FirePro® systems.
