Newton FlexProof-X1 is a single component liquid waterproofing material which forms a membrane that is rainproof in minutes and capable of handling severe building movement Key Benefits: No mixing required – simply open the packaging and use. Can be used in sub zero temperatures and on slightly damp substrate. No primer required – saving on primer and labour costs. 100% waterproof, but allows vapour diffusion. Very flexible – Resistant to movement and fissures in substrate Excellent adhesion to suitable substrates. Resistant to temperature variations maintaining its characteristics between -40ºC & 90ºC. Excellent resistance to the high alkalinity of concrete.