Standard Grade DMC
High-Impact Electrical Insulators
- Applications
- Medium-voltage insulators, terminal connector strips, heavy-duty switch bases, and automotive structural bracket frames.
- Composition
- A putty-like unsaturated polyester or vinyl-ester resin matrix, loaded with 10%–20% short-cut E-glass fibre strands (3mm–12mm), calcium carbonate stabilisers, and internal mould release lubricants.
- Processing
- Processed via closed-die hot compression or injection moulding presses at 100–300 kg/cm² and 140°C–150°C. The material liquefies, packs complex moulds evenly, and cross-links within 1–3 minutes to form warp-free, high-impact housings.