Cromadex 630 Two Pack Polyurethane Self Spatter Topcoat is a two pack polyurethane self spatter topcoat with excellent exterior durability and chemical resistance. The product’s self spatter application helps hide minor substrate defects.
Cromadex 630 Two Pack Polyurethane Self Spatter Topcoat demonstrates good mar resistance, ideal if the end product is to be widely handled. Cromadex 630 is a high solids product enabling it to be used as part of VOC reduction programme. Cromadex 630 is available in a wide range of colours, including BS, RAL and special matches all in a lead free finish.
Life expectancy of up to 15 years in a C3 (as determined in ISO12944) external environment when used with a suitable Cromadex primer. See Extra Life brochure for full details.
Suitable Substrates and Preparation
Mild Steel: Degrease with Cromadex 678 Spirit Wipe and abrade steel with P180. If necessary blast clean to remove millscale, minimum surface preparation SA2. Apply suitable Cromadex primer.
Aluminium & Galvanised Steel: Apply Cromadex 903 Chromate-Free Etch Primer (then other Cromadex primer is required to increase film build).
Stainless Steel: Use of Cromadex 903, AQ58, 750 or 850 primer is required.
Powder Coating: Degrease and abrade with P280.
Plastics: Direct adhesion to ABS, Noryl & PU Foam (Rigid), for HIPS, Acrylic, Polycarbonate, PVC and PU Foam (flexible) consult the Technical Department. Clean with a suitable anti-static cleaner prior to coating.
6L unit comprises;
5L of 630 Base + 1L of 600 Curing Agent
24L unit comprises;
20L of 630 Base + 4L of 600 Curing Agent
