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VM-8352N — epoxy powder for the second layer of factory pipe coating
VMP

VM-8352N — epoxy powder for the second layer of factory pipe coating

Other anticorrosion materials

The material is designed for factory application only: VM-8352N is an epoxy powder that pipe plants spray as a second layer over the still uncured first layer of VM-6233R. It is applied by manual mechanised methods or on automatic lines, and the coating cures by the residual heat of the pipe. It withstands an impact of 3.0 J at −30 °C without breakdown and operates at temperatures from −73 to +110 °C. Grades 4G, 6G and 8G are produced, differing in gel time.

Specifications

ManufacturerVMP — AO “NPKh VMP”, Yekaterinburg
Typeanticorrosive material
Baseone-component epoxy powder material (epoxy resin, fillers, functional additives); grades 4G, 6G, 8G
Colourgrey (shade not standardised)
Packagingcorrugated cardboard boxes with a polyethylene liner bag, 30 kg net each; flexible “big bag” containers, 1,000 kg net each
Application methodcuring by residual heat, cooling with air or a water shower to no more than 93 °C
Application temperatureproduct temperature at the inlet — 207–254 °C; preheating not above 260 °C
Dryinggel time at 205 °C: 4G — 7.6–11.4 s, 6G — 12–16 s, 8G — 16–24 s; curing time at 232 °C, max.: 30, 30, 60 s respectively
Key propertiesservice temperature of the coating — from −73 to +110 °C, porosity of the cross-section and inner surface of the two-layer coating — 1–4 points, flexibility at −30 °C at a deflection angle of 2.0° — no damage, impact resistance 3.0 J at −30 °C — no breakdown at (1.75±0.25) kV, glass transition temperature Tg1 — 55–67 °C, Tg2 — 102–114 °C, specific gravity of the powder — 1.39–1.49 g/cm³; moisture — max. 0.5 %
Compatible materialssecond layer of a two-layer epoxy powder coating over VM-6233R
Shelf life12 months when stored at no more than +27 °C and humidity no more than 80 %
StandardsTU 20.16.40-141-12288779-2023

Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.

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