This is also something that can be a problem because objects attached with contact cement can loose their grip when they sit in the sun for a while — hence it is rarely used outdoors despite its waterproof nature.Click to see full answer. Herein, how long does it take for contact cement to dry?Allow both surfaces to dry 30-40 minutes (dependent on temperature and humidity). Dry Contact Cement will feel tacky and appear glossy. If surfaces are not assembled within 2-3 hours, applying an additional coat of Nonflammable Contact Cement can reactivate adhesive. how dangerous is contact cement? Harmful or fatal if swallowed. Vapors may cause flash fire or explosion. Aspiration hazard if swallowed – can enter lungs and cause damage. Vapor inhalation may affect the brain or nervous system causing dizziness, headache or nausea. Secondly, what is contact cement used for? It can be used for almost anything but is especially useful for nonporous materials that other adhesives can’t glue together. Contact cement works best on plastics, veneers, rubber, glass, metal and leather. It’s used for gluing large surfaces such as countertops in kitchens and bathrooms.Can I use contact cement indoors?For outfitting boats you want to use the water proof or water resistant contact cement, and that is the solvent based flammable stuff. And yes, it should be at least about 15 degrees, if it’s too cold , then it won’t bond properly.

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