Roof Sealants & Cements · 10.3 oz tube (single)
Dicor Self-Leveling Lap Sealant
Dicor 501LSW is the product RV technicians reach for first when sealing horizontal joints on rubber, fibreglass, and TPO roofs. It goes on thick, levels itself flat, and forms a watertight, UV-stable gasket that stays flexible through freeze-thaw cycles — critical for Canadian roofs.
Apply it over vent flanges, around skylight curbs, along screw-head rows, and wherever a seam meets a penetration. A proper bead will self-level into a smooth pancake shape without tooling.
Compatible with EPDM, TPO, fibreglass, and aluminium roofing substrates. Solvent-free, non-shrinking formula. One tube covers approximately one vent flange with a perimeter bead and screw-head coverage.
The industry standard for a reason.
Components & Specs
Polyurethane sealant base, UV stabilizers, Mineral fillers
Product: Dicor 501LSW Self-Leveling Lap Sealant Size: 10.3 oz (approx. 310 mL) caulk tube Colour: White Compatibility: EPDM, TPO, fibreglass, aluminium Cure time: Tack-free in 2–4 hours; full cure in 24–48 hours Temp range: Apply at +4°C and above; cured product functional from -40°C to +93°C VOC: Low-VOC, solvent-free Coverage: One tube per vent flange (perimeter bead + screw coverage)
- Dimensions
- 10.3 oz tube (single)
- Weight
- 370 g