Which Surfaces are Compatible with Resin Putty?

Compatible Surfaces

Resin putty demonstrates reliable adhesion to a wide range of rigid surfaces. Typical materials include metal, aluminium, plastics (especially rigid varieties), carbon fibre, fibreglass, galvanised steel, as well as painted or varnished finishes. This versatility makes it a popular choice for vehicle repair, marine maintenance, and DIY fixes involving robust, non-flexible substrates.

• Metal and alloys
• Aluminium
• Galvanised steel
• Rigid plastics
• Carbon fibre and fibreglass
• Previously painted or varnished areas

Tips for Best Results

To maximise adhesion and durability, surfaces should be clean, dry, and free of dust, oil, or wax before application. Slightly roughening glossy or painted sections with fine sandpaper can further help the putty to grip. Apply the resin putty according to instructions, shaping to fill cracks or chips, and allow it to fully cure before sanding or finishing—products like the CROP 2K Fiberglass Putty are designed for easy sanding and finishing prior to painting or priming.

When Surface Compatibility Matters

Selecting the correct substrate is vital for a lasting repair. Avoid using resin putty on untreated, flexible, or soft surfaces, as adhesion can be compromised. Applications such as vehicle bodywork, composite repairs, or areas exposed to water and chemicals particularly benefit from the resilience of fibre-reinforced putties.