Thermoguard Thermoproof Exterior

Thermoguard Thermoproof Exterior is a penetrating fire proof fluid for bare external wood such as timber sleepers, fencing, cladding and decking.

Best Uses

Thermoguard Thermoproof Exterior is suitable as a durable, clear, fire and flame resistant fluid for external and internal wood. Weather resistant, water-based and non-flammable formula. Enables safe application by untrained and inexperienced users.

Works by penetrating deep into porous wood. When exposed to fire Thermoguard Thermoproof Exterior creates an inert layer within the wood’s surface which insulates the wood from fire, preventing flamespread.

Application

For treatment with Thermoguard Thermoproof Exterior Fluid to be effective it needs to be able to penetrate the wood. Remove any water resistant coating, sealer coat, waxy feel, glossy sheen, or waterproofing effect created by a previous treatment or preparation before application.

Apply at 3.5m2 per litre. Normally applied in 3 coats at 10.5m2 per litre but can be applied in 2 coats at 7m² per litre on very porous rough sawn wood.
Ensure each application has fully soaked in before applying the next. Allow a minimum of 2 hours between applications. Apply to small test patch prior to main application.

Apply to dry wood (below 18% moisture) above 5°C in dry conditions prior to painting or waterproofing. Where possible wait until the wood has thoroughly dried out before fixing. Allow adequate time for the wood to dry out after treatment before applying any coating.

IMPORTANT INTUMESCENT PRODUCT NOTE: Always contact Promain’s technical team prior to purchase to obtain a tailored project specification and the advice necessary. The information displayed on this website should only be used as a guide. Promain UK Limited will not be held liable for any resulting damage to property, human life or monetary costs incurred due to incorrect specification, preparation, application or maintenance that has occurred due to negligence by either the purchaser or applicator. This includes your failure to have contacted us to obtain the relevant advice/specification.