Blazelok-IB4-TDS3315 E. Division Street • Arlington, TX 76011 BLAZELOK™ IB4 Intumescent Ignition Barrier Phone (817) 640-4900 • Toll Free (877) DEMILEC (336-4532) Last Revision 11-22-11 Fax (817) 633-3143 • E-mail: Info@DemilecUSA.com • www.DemilecUSA.com Page 1 of 1
BLAZELOK™ IB4 is a water based, fire protection intumescent ignition barrier. Three mils of BLAZELOK™ IB4 applied over SEALECTION® 500
or five mils over SEALECTION Agribalance® successfully complies with the ICC-ES®, AC377, Appendix X as an ignition barrier substitute for use in attics and crawl spaces. Complies with USDA requirements for “Incidental Food Contact”. Refer to Evaluation Service Report 1172 & 2600 for
application compliance.
ASTM E 84 Test Results Flame Spread = 0, Smoke Developed = 20
Protective Properties
(Per NFPA® 286)
Complies with the AC377, Appendix X as an ignition barrier substitute over SEALECTION® 500 and
SEALECTION Agribalance® spray polyurethane foams.
Flash Point None
Volatility / VOC 2.7 g/l – Significantly below and complies with 50 g/l AQMD and EPA
Solvents Water Based – CAUTION: Do not thin this material.
Toxicity Non – Toxic
Environmental Impact
(per greenguide.com)
EPA & SCAQMD & LEED compliant
Weight per Gallon 10.3 – 10.7 lbs.
Solids by Volume 51 – 54%
Color Dull flat white
Wet Film / Coat to DFT SEALECTION® 500 – 5 mils wet dries to 3 mils dry film thickness (DFT), nominal.
SEALECTION Agribalance® – 9 mils wet dries to 5 mils dry film thickness (DFT), nominal.
Recommended Final DFT SEALECTION® 500 – 3 mils to comply with AC377, Appendix X
SEALECTION Agribalance® – 5 mils to comply with AC377, Appendix X
Foam cure time prior to application of coating 1.5 hours. Use a brush to touch up the coating in the unlikely event the foam sets back from the substrate after the coating is applied. This setback could potentially cause the coating to develop a crack a few mils wide intermittently along the foam’s edge.
Dry Times Dry to touch – 2 to 3 hours depending on humidity/temperature. Humidity above 50% RH has a significant
impact on drying time. Thicker than recommended wet thicknesses will adversely affect the drying time.
Recommended Equipment Graco® 695/ASM2100 3300 psi with spray gun tip model number RAC 521 or LTX 521 or larger. Hose size:
use 1/4” dia. last 50’ to gun, additional lengths of hose use minimum 3/8” dia. to minimize pressure loss. Remove pump and gun filters prior to spraying.
Coverage Up to 175 ft²/gal at 5 mils DFT or 320 ft²/gal at 3 mils DFT on a relatively smooth surface based on AC377, Appendix X test results. Coverage rates will be reduced on foam surfaces with large undulations or rough surfaces.
Minimum Temperatures Product pail temperature - 70°F / Substrate temperature - 50°F / Use infrared gun to confirm temperatures.
Fungus / Mold Resistance No mold growth per ASTM D 3273 test.
Please contact your Demilec (USA) Technical Service Representative for assistance regarding the installation of this product. Disclaimer: The information herein is to assist customers in determining whether our product is suitable
for their application(s). We request that customers inspect and test our product before use and satisfy themselves as to contents and suitability. Nothing herein shall constitute a warranty, expressed or implied, including any warranty of merchantability or fitness, nor is protection from any law or patent inferred.
All patent rights are reserved.
TECHNICAL DATA SHEET