AMERICAN ASTM TESTS

AMERICAN ASTM TESTING RESULTS ON THERMO-SHIELD® ROOF COATING

TENSILE STRENGTH ASTM D-412 *pdf 9

• Tensile stress at 25% elongation is 525 psi
• Tensile strength at break is 615 psi, elongation 70%

DETERIORATION BY HEATING IN AIR - ASTM D-865 *pdf 10

• Tensile strength after heating 21 days at 150°C
• Tensile stress at 25% elongation is 515 psi
• Tensile strength at break is 640 psi, elongation 85%

• Important: Comparing these results to those in the above TENSILE STRENGTH test shows that the roof coating actually gets stronger and more durable with age.

WATER VAPOR PERMEABILITY ASTM D-1653 11 *pdf and PERMEABILITY -ASTM E-96

• Both tests show the roof coating has 8.8 perm. which exceeds requirements for a class 1 rating. This astounding permeability is 160 times greater than one of our main competitors claiming to produce a permeable paint.

WATER ABSORPTION - ASTM D-570 *pdf 12

• After water saturation for 5 weeks, there were no changes on the roof coating after reconditioning .The roof coating will stand up to ponding water, yet has the ability to breathe out trapped water vapor in dry weather (Based on permeability tests). This allows waterproofing without blistering.
  

BRITTLENESS - ASTM D-746 *pdf 14

• The roof coating passed the 90° bend test at -37° C, displaying flexibility at extremely cold temperatures.

SURFACE OZONE CRACKING TEST - ASTM D-1149. *pdf 13

• After 70 days of intense ozone exposure, the roof coating showed no signs of wear.

CHEMICAL RESISTANCE - ASTM D-1380 *pdf 1

• In a 16-hour spot test of 26 harsh or staining chemicals, the roof coating blistered only with some concentrated acids, and stained only with gasoline, aircraft hydraulic fluids and lipstick.
• The roof coating was undamaged by animal urine, battery acid, bleach, deicing chemical, 40% salt solution and others.

STEADY STATE HEAT FLUX MEASUREMENTS - THERMAL TRANSMISSION PROPERTIES ASTM D-177 / ASTM C-1045

Roof Coating (At 5-mil thickness): K-value = .0454, R-value 22

• Note: Some specialists say the ASTM formula for R-value in this test "R = 1/.K" is oversimplified and does not take enough information into consideration

THERMO-SHIELD® roof coating is available with a CLASS A fire resistant rating. NOTE: This is a special Class-A formula, not our standard formula.