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750ml B3 General Purpose Fill & Fix Expanding PU Foam – Gun Grade Polyurethane Insulating Foam by TIMCO – CFC Free – (CAN OF 1)
750ml B3 General Purpose Fill & Fix Expanding PU Foam - Gun Grade (Can Of 1) - 247641
£7.99 ex. VAT £6.66
Overview ✕

Features & Benefits
• 🧱 High Expansion Performance – Expands up to 30x its original volume, perfect for sealing, filling, and insulating gaps or cavities.
• ⚡ Fast Curing Formula – Quick-drying polyurethane foam that can be cut, sanded, plastered, or painted once fully cured.
• 🔇 Thermal & Acoustic Insulation – Reduces heat loss and noise transfer in both interior and exterior applications.
• 🧤 Includes Protective Gloves – Comes with a pair of gloves for safe and clean application straight from the can.
• 🌿 CFC-Free & Durable – Environmentally friendly formula suitable for builders, installers, and home repair projects.

Description
The TIMCO 750ml B3 General Purpose Fill & Fix Expanding PU Foam (Gun Grade) is a versatile polyurethane foam designed for professional and DIY use. It expands up to 30 times its original size, delivering excellent filling and insulation properties. Ideal for sealing around door and window frames, filling irregular cavities, and improving soundproofing. Once cured, it can be sawn, sanded, painted, or plastered for a smooth, professional finish. The formula is CFC-free, ensuring eco-friendly performance, and includes gloves for user safety. Perfect for use on both interior and exterior projects.

Delivery Details ✕

 

Our Delivery Options

Express 1/3 Day Delivery

  • Delivery Fee:
    • £3.79 delivery for orders under £30
    • Free delivery for orders over £30
  • Order By:
    • 2:30pm 
  • Delivery Time: Before 6pm Monday-Friday

Next Business Day Delivery

  • Delivery Fee:
    • £7.50
  • Order By:
    • 2:30pm 
  • Delivery Time: Before 6pm Monday-Friday

Pre-12 Next Business Day Delivery

  • Delivery Fee: £16.99 delivery for all pre-12 orders (Weekend Only)
  • Order By:
    • 2:30pm 
  • Delivery Time: Before 12pm Monday-Friday

Remote Areas Delivery

  • Delivery Fee:
    • £3.99 
  • Order By:
    • 2:30pm 
  • Delivery Time: Standard delivery (2-4 days)

Weekend Delivery

  • Delivery Fee:
    • £19.99
  • Order By:
    • 2:30pm Friday
  • Delivery Time: Before 6pm Saturday

Good To Know

For orders to some addresses, especially in the Highlands of Scotland and Offshore, next day delivery options are not available and delivery can take several days. Saturday delivery is not available for remote areas.

Items over 30kg: Items over 30kg can only be delivered from Monday to Friday. If ordered before 3pm, please allow up to two business days for delivery. Orders placed after 6pm Thursday will be delivered after the weekend.

 

 

 

 

750ml B3 General Purpose Fill & Fix Expanding PU Foam – Gun Grade Polyurethane Insulating Foam by TIMCO – CFC Free – (CAN OF 1)

Frequently bought together

750ml B3 General Purpose Fill & Fix Expanding PU Foam – Gun Grade Polyurethane Insulating Foam by TIMCO – CFC Free – (CAN OF 1)

£7.99

+
(PACK OF 1) 750g PU Wood Adhesive 30 Minute Liquid – Fast Curing Polyurethane Wood Glue D4 Waterproof Bond

£19.99

+
Black Nitrile Anti-Slip Gardening Gloves - Latex Coated Waterproof Work Gloves (Available in M,L & XL)

£3.99

Total price:

BRAND: TIMCO

750ml B3 General Purpose Fill & Fix Expanding PU Foam – Gun Grade Polyurethane Insulating Foam by TIMCO – CFC Free – (CAN OF 1)

purchased in the last 24 hours
£7.99 inc VAT
/
£6.66 ex VAT
  • Same Day Dispatched
  • In stock, ready to ship
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Frequently bought together

750ml B3 General Purpose Fill & Fix Expanding PU Foam – Gun Grade Polyurethane Insulating Foam by TIMCO – CFC Free – (CAN OF 1)

£7.99

+
(PACK OF 1) 750g PU Wood Adhesive 30 Minute Liquid – Fast Curing Polyurethane Wood Glue D4 Waterproof Bond

£19.99

+
Black Nitrile Anti-Slip Gardening Gloves - Latex Coated Waterproof Work Gloves (Available in M,L & XL)

£3.99

Total price:

Features & Benefits
• 🧱 High Expansion Performance – Expands up to 30x its original volume, perfect for sealing, filling, and insulating gaps or cavities.
• ⚡ Fast Curing Formula – Quick-drying polyurethane foam that can be cut, sanded, plastered, or painted once fully cured.
• 🔇 Thermal & Acoustic Insulation – Reduces heat loss and noise transfer in both interior and exterior applications.
• 🧤 Includes Protective Gloves – Comes with a pair of gloves for safe and clean application straight from the can.
• 🌿 CFC-Free & Durable – Environmentally friendly formula suitable for builders, installers, and home repair projects.

Description
The TIMCO 750ml B3 General Purpose Fill & Fix Expanding PU Foam (Gun Grade) is a versatile polyurethane foam designed for professional and DIY use. It expands up to 30 times its original size, delivering excellent filling and insulation properties. Ideal for sealing around door and window frames, filling irregular cavities, and improving soundproofing. Once cured, it can be sawn, sanded, painted, or plastered for a smooth, professional finish. The formula is CFC-free, ensuring eco-friendly performance, and includes gloves for user safety. Perfect for use on both interior and exterior projects.

Prices drop automatically as you add more to your basket — no code needed. Prices shown inc VAT.

Free express delivery on all orders over £30. Choose your speed at checkout.

Express Delivery

1–3 working days

Orders under £30
£3.79
Orders over £30
FREE

Next Day Delivery

Order by 2pm Mon–Fri

All orders
£7.50
FREE for Gold members

Pre 12 Delivery

Next working day, by midday

All orders
£16.99

Pre 10.30 Delivery

Next working day, by 10:30am

All orders
£19.99

Weekend Delivery

Saturday & Sunday

Orders under £30
£13.99
Orders over £30
£7.50

Remote Areas Delivery

Highlands, islands & remote postcodes

Orders under £30
£5.49
Orders over £30
£3.00

Orders before 2pm Mon–Fri dispatch same day. Remote-area surcharges apply to Highlands, islands & selected postcodes. All prices include VAT.

  • Free Shipping Over £30

    Orders over £30 ship free.

  • 30 Day Easy Returns

    Not right for the job? Send it back within 30 days for a full refund.

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