Series 1505

Endura-Heat ZR

This product has been discontinued. Please contact your local sales representative for further assistance.

Generic Type

Silicone Zinc Copolymer

Common Usage

A high-performance, two-component, zinc-rich, silicone copolymer that offers galvanic protection to steel substrates for extended corrosion protection up to 1000°F (538°C). An excellent primer for use with selected topcoats as part of a corrosion- and heat-resistant coating system. Requires an exceptionally low minimum 250°F (121°C) heat cure prior to placing in service.

Special Qualifications

Series 1505 uses a zinc pigment which meets the requirements of ASTM D 520 Type III and contains less than .002% lead.

Recommended DFT

2.0 to 3.0 mils (50 to 75 microns) per coat.

Theoretical Coverage

658 mil sq ft/gal (61.1 m²/L at 25 microns). See APPLICATION for coverage rates.

Volatile Organic Compounds

TBAC Exempt:
Unthinned: 3.30 lbs/gallon (396 grams/litre)
Thinned 10% (No. 80 Thinner): 3.71 lbs/gallon (445 grams/litre)
Thinned 10% (No. 81 Thinner): 3.76 lbs/gallon (451 grams/litre)
Thinned 10% (No. 82 Thinner): 3.86 lbs/gallon (462 grams/litre)
Note: This product is not compliant in air districts that do not allow TBAC exemption.


Series 1552, 1556, 1558

Curing Time

Temperature To Touch To Handle To Topcoat To Place in Service
75°F (24°C) 1 hour 2 hours 1 to 2 hours 12 hours

Important: Allow Series 1505 to ambient cure for 12 hours prior to heat cure. Reference the heat cure table below. Curing time varies with surface temperature, air movement, humidity and film thickness.

Volume Solids

41% (mixed)





Number of Components

Two: Part A and Part B

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