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Hardener for putty

A 2K (two-component) polyester putty is used together with a hardener. The curing process creates a strong and durable surface by initiating a chemical reaction between the putty and the hardener. Without the hardener, the putty will not harden properly and you will not achieve the desired strength and durability. For optimal use, we recommend a putty mixing board and a Japanese putty knife.

5 Products
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20-900 Bpo Hardener Tube 40 G
883 in stock

Q-Refinish 20-900-0040

20-900 Bpo Hardener Tube 40 G

€4,55
1 TUBE(40 G)

€3,64

Limited quantity - item is being omitted
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20-900 Bpo Hardener Cartridge 60 G
44 in stock

Q-Refinish 20-900-0060

20-900 Bpo Hardener Cartridge 60 G

€7,86
1 PATRON(60 G)

€6,29

Limited quantity - item is being omitted
00281 Polydur Hardener
24 in stock

Lechler L0000281K0,04

00281 Polydur Hardener

1 TUBE(40 G)

€5,24

Limited quantity - item is being omitted
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Bpo Hardener 50G
1 in stock

Motip 000079

Bpo Hardener 50G

€6,39
1 TUBE(50 G)

€4,79

Limited quantity - item is being omitted
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Hardener Paste U1120 Blue Long
46 in stock • While stock lasts

Standox 2082390

Hardener Paste U1120 Blue Long

€9,61
1 PATRON(90 G)

€8,17

Limited quantity - item is being omitted

mixing ratios and usage tips

When working with BPO (benzoyl peroxide) hardener and putty, it is essential to know the correct mixing ratio. Typically, the ratio ranges from 1% to 4% BPO hardener relative to the amount of putty. Following the manufacturer's instructions precisely ensures a strong and durable surface. Proper mixing and curing times are critical to achieving optimal adhesion and durability.

SAFETY AND APPLICATION GUIDELINES

Always prioritize safety when handling chemicals such as hardeners. Use protective equipment including nitrile gloves, goggles, and a respirator in a well-ventilated area. BPO hardeners are ideal for polyester and fiberglass repairs and usually come as a greyish or white paste or gel. Carefully mix in the correct proportions with putty or gelcoat before application to ensure excellent repair strength and durability. Using the right techniques and products will make your project successful.