Prymax GRP Primer
Prymax GRP Primer is a high-performance polyurethane primer designed to significantly improve the bonding of polyester resins and GRP systems to concrete, wood and metal substrates.
Its moisture-curing formulation allows application in damp (but not wet) conditions and at lower temperatures, making it ideal for challenging site conditions where standard primers may fail. Once applied, Prymax GRP Primer penetrates porous surfaces and prepares them for strong chemical adhesion.
When the primer reaches a partial cure, polyester resins applied over it will chemically bond to the surface, creating an exceptionally strong and reliable interface. This makes Prymax GRP Primer an excellent choice for bonding GRP laminates to porous and metal substrates in roofing, flooring and structural applications.
Prymax GRP Primer is easy to apply and provides consistent, dependable performance when used as part of a GRP installation system. It is particularly effective where enhanced adhesion and surface preparation are critical to long-term durability.
Available Sizes
Prymax GRP Primer is supplied in a range of container sizes to suit different project requirements:
- 1kg – ideal for small repairs and localised GRP bonding jobs
- 2.5kg – suitable for medium-sized preparation and priming works
- 5kg – ideal for larger GRP installations and trade use
- 20kg – suitable for extensive commercial or industrial applications
KEY PRODUCT FEATURES
- Polyurethane bonding primer for GRP systems
- Improves adhesion of polyester resins
- Suitable for concrete, wood and metal
- Moisture curing – usable in damp conditions
- Performs in low temperatures
- Ideal for GRP roofing and laminating applications
Trade In Timber EXTRA-
(online purchase-nationwide delivery)
Lead time of 2-4 working days, but some items or addresses may take 7-10 working days.
Your delivery charge will be displayed in the trolley page at checkout prior to purchase.
Once the order has been purchased a member of our team will be in contact to discuss delivery.
The products ordered are for kerbside delivery only which means our drivers will unload goods at the nearest access point on the kerb outside of your property.
You can also collect timber from our Timber Yard. Our address is Power Station Rd, Minster on Sea, Sheerness, Kent ME12 3AD
We are open:
Monday - Friday 9am - 3pm
Saturday 9am - 1pm
Sunday closed
Huge savings can be made buying some of our products in bulk. Take a look at our bulk offers to see how much you can save.