Acothane DW

Acothane DW is an internal and external coating and lining for metallic, cementitious, composite and GRP tanks, vessels, reservoirs, pipelines, etc for the transport of drinking water. DWI Approved.

Best Uses

Acothane DW is a high build solvent-free two pack polyurethane with outstanding physical properties in terms of flexural strength, tensile strength, impact and abrasion resistance.

This DWI Approved coating is ideal for the transportation of drinking water via coating metallic, cementitious, composite and GRP tanks, vessels, reservoirs, pipelines, pipe bends and random lengths, valves and fittings holding etc.

DWI approved.

Application

Preparation

Steel: Ensure surfaces are free from grease, oil salts etc. Grit blast to minimum BS 7079 standard SA 2 ½ - surface profile depth 75 - 100 microns. Mechanical tools may also be used providing a surface profile of minimum 75 microns can be achieved. Do not polish the steel surface.

Acothane DW is a surface tolerant coating and will accommodate a degree of surface blooming and flash rusting. Contact our technical department if clarification is required.

GRP: Ensure surfaces are free from grease, oil, salts etc. Lightly abrade to raise a suitable surface profile.

Concrete: Remove all laitance and other contaminants by most appropriate method e.g., blast cleaning. Ensure the concrete is dry to a reading of less than 16% on the Wood Moisture Equivalent (WME) scale of the Protimeter Surveymaster SM Moisture Meter or similar instrument. Seal with Acothane LV Sealer.

Can be spray applied in wet-on-wet increments at up to 5mm. Brush or roller application up to 500 microns per coat. Recommended thickness for steel and GRP 1mm nominal 800 microns minimum and 1mm minimum for concrete. Brush, roller or approved plural component hot spray machine.

Activator must be added to the base and thoroughly mixed ensuring an even mix throughout the 'pot'. Care must be taken to avoid unmixed material being left on the sides and bottom of the can. Decanting mixed material into a plastic container and further mixing is recommended. The plastic container may be recovered for further use when coating on walls has cured. Pot life - approx 25 - 30 minutes at 25°C.

IMPORTANT NOTICE: From 24th August 2023, adequate training is required before industrial or professional use of this product. Training can be accessed at: https://www.safeusediisocyanates.eu