GRP External Fillet Corner (C3)

GRP External Fillet Corner (C3) – Pre-Formed External Corner for GRP Roofing Systems

The GRP External Fillet Corner (C3) is a precision-moulded, hot-pressed corner trim designed for external junctions where two GRP fillet trims meet. This pre-formed external corner ensures a clean, watertight connection and speeds up installation, making it ideal for both domestic and commercial GRP roofing projects.

Crafted from durable fibreglass, the C3 External Corner is weather-resistant and impact-resistant, providing long-term performance on any GRP flat roof system.

Key Features:

• ✅ Pre-Formed External Corner – For joining two external fillet trims

• ✅ Hot-Pressed for Consistency – Ensures accurate shape and a clean fit

• ✅ Quick & Easy Installation – Nail in place, seal with PU adhesive, then bandage

• ✅ Smooth, Watertight Finish – Use fibreglass tissue to create a seamless look

• ✅ Durable Fibreglass – Resistant to moisture, frost, and foot traffic

Trim Fitting Instructions:

1. Fix to the deck using nails at both ends and the centre.

2. Apply a thin bead of PU adhesive to all joints.

3. Smooth adhesive with a moist finger to fully seal.

4. Bandage over the joint using tissue for a clean finish.

Product Details:

• SKU: PG-C3-Ext-Wall

• Stock Type: Warehouse Fulfilled

• Material: Fibreglass

Always follow an up to date data sheet when installing or applying this or associated products.

For help and advice on product purchase or application please call our customer services team on 01268 472358.

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