The ultimate all-in-one filler and caulk. FC1 bonds and seals gaps between a variety of materials including wood, metal, brick, stone, plaster and plastics.
The super-smooth finish doesn't require any sanding, and it's quick-drying - it can be painted or papered over in as little as one hour, helping you get the job done faster. Perfect for filling and sealing gaps in door frames, skirtings, architraves, window sills and coving.

• Can be used as both a filler and a caulk
• No slumping - fill up to 25mm in one application
• Quick-drying - paint or paper over in as little as one hour
• Smooth finish with no sanding required
• Can be applied in temperatures from 5°C to 40°C
• Advanced acrylic elastomer technology for increased flexibility
• Solvent-free formula

Delivery (UK mainland only)

 

Next Day: £5, or FREE over £40

- Order by 9pm Mon-Thu: next working day

- Order Fri to 5pm Sun: Monday

- Order after 5pm Sun: Tuesday

 

Pre-12pm: £10

- Same cut-offs as Next Day above

 

Saturday & Sunday: £10, or £5 over £40, or FREE over £75

- Saturday: order by 6pm Fri

- Sunday: order by 4pm Sat

 

Heavy items (over 30kg)

- Mon-Fri only. Order by 6pm and allow up to two working days

- Order after 6pm Thu: arrives after the weekend

 

Supplier items

- Sent directly by the supplier, so timings vary. Lead times appear on the product page in working days (Mon-Fri)

 

More about delivery 

Next Business Day Collection (eligible items)

- Order by 9pm Mon-Thu: collect next day

- Order after 9pm Thu to 5pm Sun: collect Monday

- Heavy items (over 30kg): allow up to two working days

 

Opening hours

- Weekdays vary by branch: open 6:30am-7am, close 6pm-8pm

- Saturday: 7am-6pm

- Sunday: 9am-4pm

 

Check your local store's hours and that it's open before visiting. Please wait for our text or email before collecting.

 

Holding your order
We'll hold it for 14 days, then automatically refund your original payment method.