Automotive Refinishing
Discover our range of automotive refinishing products from U-POL, covering body fillers, fibreglass repair kits, metal and leak repair compounds, hardeners and application accessories for bodywork repair.
Choosing the right filler depends on the size and type of repair. Standard body filler suits general dent and panel work, fibreglass repair systems handle larger holes and structural repairs, and specialist compounds like metal fix and leak stop address specific problems a standard filler isn't designed for.
22 products
Automotive Refinishing – Product list
P.38 multi-purpose body filler
U-POL's P.38 range is the standard choice for general body filling, available across a wide range of sizes from the 250ml tin up through 600ml, 1.2 litre and 2.25 litre, giving trade users the option to buy in bulk for regular bodywork repair.
P.40 filler for holes
The U-POL P.40 Body Filler for Holes, in 250ml and 600ml tins, is formulated specifically for filling holes rather than general surface repair, giving better strength and adhesion across a gap than a standard filler designed for shallow dents.
ISOPON FASTGLAS fibreglass repair system
For larger holes and structural repairs, the FASTGLAS system combines several components: Resin & Glass Fibre Kit (in Small and Large sizes), separate Laminating Resin (250ml and 500ml), Tissue and Matting. Combining resin with glass fibre tissue or matting builds structural strength across a hole that filler alone couldn't bridge.
ISOPON specialist compounds
Beyond general filling, U-POL's ISOPON range covers specific repair problems: Metal Fix bonds and repairs metal surfaces, Leak Stop seals against water ingress, and the Ultimate Filler gives a premium general-purpose option with finer finishing properties than standard P.38.
Easy 1 body filler
The U-POL Easy 1 Body Filler (3 litre) is designed for easier sanding and application than standard fillers, suited to users wanting a more forgiving working time and finish.
Hardeners and application accessories
U-POL's Hardener for P.38/P.40, in 20g and 40g sachets, activates the filler's curing process and needs to be mixed at the correct ratio for proper hardening. The Aluminium Mesh reinforces filler across larger repair areas, while the Onion Multi Layer Mixing Board and Applicators support clean, efficient mixing and application of filler.
Choosing the right filler for your repair
Standard P.38 suits general dents and surface repair, P.40 is built specifically for holes, and FASTGLAS fibreglass systems handle the largest or most structurally demanding repairs. Always mix hardener at the correct ratio, since too little won't cure fully and too much can cause the filler to set too quickly to work with properly.
Why buy your automotive refinishing products from MTN Shop
All automotive refinishing products sold here are genuine stock from U-POL. We ship fast across the UK with straightforward returns on unused stock. For trade or bulk orders, request a quote and our team will confirm stock and lead time directly. For any other questions, contact us and our team will be happy to help.
