Interior Fire Retardant Penetrant for Lumber & Plywood

FX LUMBER GUARD

ALL FIRE RETARDANTS DO IS PROLONG TIME TO IGNITION

NOTHING IS FIREPROOF

DESCRIPTION

FX Lumber Guard is an interior fire retardant penetrant that can be applied in field applications. There are numerous projects where raw materials can be treated, and they are not limited to wood framing, wall sheathing, wooden furniture, reclaimed wood, wooden doors, and much more.

FX Lumber Guard is not a coating; most coatings have been tested to the ASTM E84 Surface Burning Characteristics standard for flame spread and smoke development. Fire Retardant Coatings has a retreatment requirement of 2 - 5 years, and FX Lumber Guard is tested to the extended surface burning characteristics requirement and has no retreatment requirements. FX Lumber Guard meets the NFPA 703 / 255 (ref: ICC ESR 3872, IAPMO UER 478, and Intertek CCRR 1044), UBC 42.1, AWPA U1 UCFA Interior, UL 723, AC 363 Compliant, California Building Code, California Residential Code, and Califonia Fire Code Compliant.

Straight cuts and cross cuts on sawn lumber do not have to be retreated; if sawn lumber is ripped, the rips must be retreated afterward. Plywood and OSB can be cross-cut, straight-cut, and ripped with no requirement for retreating.

FX Lumber Guard & FX Lumber Guard XT were the first to achieve
the Class A fire retardant requirement of the IBC Codes of a 1/8 joint for sheathing (plywood and OSB), demonstrating its superior performance.

TESTING AND STANDARDS

FX Lumber Guard is a permanent application. Results: Class A (ASTM E84 Permanency test conducted in February 2016)

FX Lumber Guard has been tested on sawn lumber, plywood, and OSB to the maximum standards for fire retardants. Some examples of testing are not limited to the following.

∙ ASTM E2768 - Surface Burning Characteristics (extended ASTM E84) Results: Class A fire retardant penetrant (average flame spread is five and average smoke index is 45) when applied to SYP Plywood and SYP OSB, both test samples had the required 1/8 joint and roofing nails applied (required for roof decking). The test was conducted in Sept. 2019.

∙ ASTM E2768 - Surface Burning Characteristics (extended ASTM E84) Results: Class A fire retardant when applied to Southern Yellow Pine Sawn Lumber. The test was conducted in February 2015.

∙ ASTM D3201 -Standard Test Method for Hydroscopic Properties of Fire-Retardant Wood and Wood-Based Products. Results: Moisture Content was 19.9% when the test ended and applied to Southern Yellow Pine sawn lumber. The test was conducted in November 2017.

∙ ASTM D5516 - Standard Test Method for Evaluating the Flexural Properties of Fire-Retardant Treated Softwood Plywood Exposed to Elevated Temperatures. The test was conducted in December 2017 and February 2024.

∙ ASTM D5664 - Standard Test Method for Evaluating the Effects of Fire-Retardant Treatments and Elevated Temperatures on Strength Properties of Fire-Retardant Treated Lumber. The test was conducted in May 2018.

∙ASTM D3043 -Standard Test Method for Structural Panels in Flexure. The test was conducted in December 2017 and February 2024.

∙ AWPA E12 - Standard Method of Determining Corrosion of Metal in Contact with Treated Wood. Results: Non-corrosive when applied to raw southern yellow pine. The test was conducted in June 2018.

∙ ASTM D2369 - Standard Test Method for Volatile Content of Coatings. Results: VOC .06% / g/l .65. The test was conducted in August 2015.

∙ ASTM E119 - Standard Test Method for Building Construction and Materials Fire Test. ASTM E119 was modified to meet the requirement of the International Residential Code IRC 302.13 exception #4. Based on IRC 302.13, exception #4 requires the I-Joist to have a fire resistance equivalent to a 2x10 or greater dimensional lumber. Not the whole assembly, so to achieve this code requirement, ASTM E119 had to be modified from the standard. Results: ASTM E119 (Modified) 17 minutes with a load factor of 14%, and the criteria for I-Joist fire requirement allows for a smaller test size, stating “No less than 12 feet”. So, a 13-foot by 8-foot size assembly was tested (104 square-foot assembly) 

∙ NFPA 259 – Standard Test Method For Potential Heat of Building Materials. Results: Potential Heat of Combustion of ½ SYP Plywood is 7,729 Btu/Lb, and 7/16 OSB Sheathing is 8,247 Btu/Lb. The test was conducted in October 2021.

∙ ULC S102 - Standard Method of Test for Surface Burning Characteristics of Building Materials and Assemblies. Results: Class A fire retardant when applied to SPF (Spruce, Pine, Fir) sawn lumber and 3/8 OSB in February 2016. 

∙ UL 2818 - Standard for Chemical Emissions for Building Materials, Finishes and Furnishings. Results: FX Lumber Guard is Green Guard Gold Certified.

The beneficial values of using FX Lumber Guard are that it is non-toxic, non-hazardous, environmentally safe, shallow to no VOC content or emissions, odorless, stainable (water-based products only), paintable (water-based products only), will not change the looks of the material treated, and has testing values that meet or exceeds the industry requirements.

Some insurance companies have been known to give discounts for using FX Lumber Guard.