Curing Agent

Product Description

Curing Agent H***0 Description: Curing Agent H***0 is a latent hardener for melamine formaldehyde impregnation resins with long pot-life and high curing activity. The basic requirements for curing agents for melamine resins like - shortening of pressing time (down to *0 s at **0°C) - accelerated condensation in the drying oven - no sagging of the resin - long pot life of resins containing the curing agent (up to *4 hours) are fully met by Curing Agent H***0. Despite its fast reaction in the drying oven, Curing Agent H***0 shows little tendency to blistering in films and does not disturb the flow of the resin in the press during the coating process. The resin remains on the surface of the coated paper, producing a smooth surface of the pressed material. The pH of the resin is altered only slightly by Curing Agent H***0. The pot life of the mixture of resin and curing agent is that ample, that it can even be processed after several hours of stoppage, provided the resin solution is maintained at room temperature. Application Fields: Curing Agent H***0 can be used in all melamine resins which are used for coating of support material such as chipboards, fibreboards and laminated plastic sheets. Technical Data: Composition: aqueous solution of inorganic salts Appearance: yellowish liquid Density [g/cm?3;]: approx. 1.*9 pH-value (*0°C): approx. 8.2 Application: Curing Agent H***0 should be well mixed into the finished resin that is cooled to processing temperature. It is recommended to add the curing agent to the resin shortly before a new bath is required for impregnating, as after addition of Curing Agent H***0 the pot-life of the resin can not be extended arbitrarily. Detail information concerning the turgidity time are available on request. Packaging: IBC ***0Kg Storage: Curing Agent H***0 should be stored in tightly sealed containers and has to be protected from frost, heat and direct sunlight. If these rules are obeyed, the product can be stored for at least *2 months. The expiry date is stated beneath the production date on the labels of each container.