Bonding of HUACHAO®
Solution acrylic glue is bonded generally and most simply with similar to general-purpose adhesive. Finely sanded edges are needed for precise bonding of accurately fitting adherends. The joint areas are cleaned with lighter gas before the adhesive is applied. Ventilate the room well, do not smoke and avoid skin contact!
• Apply Solution acrylic glue thinly from a tube (or PE bottle) onto one HUACHAO®part, join parts together immediately and fix with adhesive tape.
• You can handle the parts after about 1 to 2 hours even if they finally harden only after several days.
• Crystal-clear cut-to-size sheets of HUACHAO® are most securely bonded with Polymer acrylic glue.
• Gap-filling and hardens when exposed to daylight or fluorescent lamps
• Where fit has to be most precise, super glues based on cyanoacrylates are also suitable.
• The HUACHAO® parts to be bonded should be stress-free. Adhesive and adhesive fumes must be prevented from entering the cavities, since this may lead to stress cracking.
• To obtain perfect bonds, it is advisable to anneal the parts before and after bonding at approx. 70°C.
Bonding HUACHAO® with other materials
HUACHAO® is preferably bonded with other materials such as metal, glass and stone using elastic adhesives on a silicone basis.
Always bear in mind the manufacturer’s statements when processing silicone rubber, and use corresponding adhesion promoters if required. Silicone rubber and its fumes should be prevented from entering the cavities. Silicone rubber should not be applied to cold-curved or stressed HUACHAO® in order to avoid stress cracking.
Method:
• Clean the surfaces to be bonded
• Surfaces should be dry and free from dust
• Mark out the bonding area, e.g. with Scotch™ tape
• Treat the surface or edge with adhesion promoter (bearing in mind manufacturer’s instructions)
• Fix the parts into position
• Apply silicone rubber using pressure
• Smooth the adherend surface with a dampened tool
• Remove the marking tape before a skin forms
• Select a glue line with a large surface area
• Bear in mind the manufacturer’s instructions also during curing.
