After pasting, use an art knife to trim the edges along the sealing strip of the glass to ensure that the film only fully fits the glass. Rainbow & Tuip Film Feature Strong Sunlight Blocked, Harmful UV Rejected: Made of premium vinyl material, the window privacy film effectively reduces annoying glares, blocks out most UVA rays and UVB rays, and protects your skin and furniture from getting directly exposed to sunlight; By letting filtered natural light in, glass film creates a soft atmosphere for you.