By continuing to browse this website or by clicking 'I Accept', you agree to the use of cookies. Cookies are stored on your computer or mobile device and enhance your site experience. To learn more about how we use cookies, you can click the 'Learn More' button.
Totally Resistant to Aliphatic Hydrocarbons. Easiest to Apply (even in severe weather). Multi-Application Versatility For Any Oil/Gas Line Surface. Finest Engineered Thixotropic Viscosity. For use in CA and AZ
Royston A51 and Tapecoat TC Mastic are thixotropic, brush applied coal tar coatings for below grade applications. A time proven coating technology for providing corrosion protection to metal fittings, flanges, valves, tanks,mechanical couplings, anode connections and other difficult and irregularconfigurations. They are also designed to protect concrete surfaces fromadverse environments.
A51 and TC Mastic are easy to apply by brush or rubber glove. Due to their thixotropic nature they resist drips and sags during application, but will become more flowable the more they are brushed. The A51 and TC Mastic canalso be sprayed via air or airless sprayers. The A51 and TC Mastic may need to be thinned for spray applications below 60°F, contact a Chase Representativefor more details.
Recommended UseAppropriate for coating fittings, flanges, valves, tanks, mechanical couplings, anode connections and other difficult and irregular configurations. Their resistance to gasoline and oil make A51 and TC Mastic a good choice for service stations, terminals, bulk stations, producing fields and similar locations.
Substrate: Steel, Stainless Steel, Ductile Iron, Other Metals, FBE, CTE, Concrete
Surface Preparation: SSPC SP-2 Hand Tool Cleaning, SSPC SP-3 Power Tool Cleaning or SSPC SP-6/NACE No. 3 Commercial Blast Cleaning
Optional Reinforcement: Royston Glas-Wrap can be applied over the mastic or between mastic layers, giving the coating added strength and impact resistance.
Safety: Refer to Material Safety Data Sheet: MSDS-A51, MSDS-A51-LOW-VOC or MSDSTC-MASTIC
Application: Apply in two coats that each have a WFT of 15 mils. Allow the first coat to dry to the touch before application of the second coat. Never apply more than 40 mils in a single coat to prevent mud cracking.
Property A51 Low VOC Test Method
Color
Black
Percent Solids, Volume
53%
ASTM D2697
Percent Solids, Weight
59%
ASTM D2369
Solvents
PCBTF, Toluene, MEK
VOC Content
<250 g/l (2.1 lb/gal)
Flash Point
25°F
ASTM D327 (Closed Cup)
Water Absorption
<0.5%
ASTM D570
Water Vapor Transmission Rate
<0.5 g/ (h*m²)
ASTM E96 Procedure B
Holiday Detection Setting
4800V for 15 mil DFT
NACE RP0274
Cathodic Disbondment, 30 Days
<10 mm radial <0.7 in²
ASTM G8
Service Temperature Range
-40°F to +150°F
Are you sure you would like to remove this item from the shopping cart?
This item is a part of the approved quote. Removing it will remove all quote items from the cart.