If you're planning on using MDF as part of a project, you'll need to seal it before painting, as moisture can cause the material to distort and swell, especially if it has routed edges. This product does exactly what you expect it to do, it will prime and seal your MDF and is very quick to dry. Use it on jobs like display units and craft projects, particularly in damp or humid settings.
This clear primer and sealer is easy to apply and clean up afterwards as it's water-based. It's also suitable for use indoors and out, and you can use either paint or varnish on top of it after just two hours drying time.
• Quick drying, clear primer and sealer for all grades MDF
• Water based
• Interior and exterior use
• One coat application
• Can be overcoat with paint or varnish
• Approx coverage of 6m² per 500ml
• Low odour
• Hazard safety codes: Xi, R36
• Conforms to the Toys (Safety) Regulations 1995, BS EN 71 Part 3
• Apply at +15-25°C, don't use in temperatures lower than +10°C, or in high humidity conditions

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.