Scigrip 4 10308, Weldon 4, Acrylic Solvent Cement,1/4 Pint can, Applicator Bottle with 2 needles. Water-Thin, non-flammable, moderately fast-setting solvent cement for bonding acrylic It will not bond to cross linked acrylics Blush-resistant cement It will also bond with other thermoplastics such as polystyrene, CAB (cellulose acetate butyrate), PETG (polyethylene terephthalate glycol) and polycarbonate to themselves 1/2 oz. bottle comes with 2 needles and they are replaceable on the bottle.