Gold Bond® BRAND Hi-Impact® XP® Gypsum Board with Sporgard™* consist of a tapered edge, moisture resistant, fire reesistant, Type X gypsum core encased in a heavy, abrasion and mold/mildew/moisture resistant, 100% recycled, purple paper on the face side and a heavy, abrasion and mold/mildew/moisture resistant, 100% recycled, gray paper on the back side. A fiberglass mesh is embedded into the core, close to the back of the board to provide additional impact/penetration resistance.
Hi-Impact XP Gypsum Board features a specially formulated core to provide fire resistance ratings when used in tested systems in addition to providing extra protection against mold and mildew compared to standard wallboard products.
Long edges of the panels are tapered. Tapered edges allow joints to be reinforced with ProForm® BRAND Joint Tape and concealed with ProForm BRAND Ready Mix, Easy Finish® BRAND Ready Mix or ProForm® BRAND Sta-Smooth Setting Compounds.
For optimum mold and mildew performance, National Gypsum recommends ProForm® BRAND XP Ready Mix.
Hi-Impact XP with Sporgard
National Gypsum is the first building products company to offer Sporgard™, a combination of mold inhibitors offering the most advanced technology. Sporgard comes from Syngenta, a world leader in mold control.
Sporgard technology offers the best possible defense against mold. The multiple mold inhibitors in Sporgard are each individually approved to meet the Environmental Protection Agency's most stringent standards for use in post harvest food applications.
Hi-Impact XP with Sporgard has received the highest possible ratings on the most rigorous tests for mold control, including both ASTM G 21 and ASTM D 3273. In addition, Hi-Impact XP with Sporgard installs and finishes just like standard gypsum board and is backed by the industry's most trusted customer service program and is manufactured at plants across the country.
GREENGUARD Certified
Hi-Impact XP Gypsum Board with Sporgard is GREENGUARD Children & Schools Certified® for indoor air quality.
The GREENGUARD Children & Schools Certified® Mark is a registered certification mark used under license through the GREENGUARD Environmental Institute.

The GREENGUARD Certification ProgramSM is an industry independent, third-party program that has been certifying products for low non-toxic emissions since 2001. To achieve GREENGUARD Indoor Air Quality Certified status, National Gypsum's prodcuts passed rigorous sample testing and review of the manufacturing processes to meet strict standards set by the GREENGUARD Environmental Institute (GEI) — a globally recognized leader in indoor air quality — to determine their impact on indoor air pollution. To achieve GREENGUARD Children & Schools Certification, Hi-Impact XP Gypsum Board met even more stringent emissions limits that take into account the added sensitivity of children and adults with compromised immune systems. |
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Applications
- This unique gypsum board is designed for interior use in wall assemblies in areas where surface durability, impact/penetration, moisture, mold and mildew resistance are major concerns.
- 5/8" Fire-Shield Hi-Impact XP panels may be used where Type X gypsum panels are specified in some fire-rated wall assemblies (e.g., UL U300, U400 and V400 series).
Features & Benefits
- Resists the growth of mold per ASTM G 21 with a score of 0, the best possible score.
- Resists the growth of mold per ASTM D 3273 with a score of 10, the best possible score.
- For use in areas where surface durability, impact/penetration, moisture, mold and mildew resistance are major concerns.
- Provides greater resistance to surface abuse and indentation over standard wallboard.
- Features a smooth, heavy face paper that is highly resistant to scuffing and provides a superior surface for decoration.
- Features a Type X core to provide additional fire resistance when used in tested systems.
- Hi-Impact XP can be used as a tile backerboard in dry areas or areas with limited water exposure such as toilet/sink areas and areas above tile in tubs and showers.
- Less than 5% water absorption per ASTM C 473.
- Easily scored and snapped.
- Does not require the added strength of a setting type compound for joint reinforcement.
- Allows for same joint treatment reinforcement procedures as standard drywall, thereby reducing costs and the risk of improper installation.
- Lightweight alternative to CMU.
- Faster installation as compared to CMU.
Fire Resistance Ratings
Fire Resistance ratings represent the results of tests on assemblies made up of specific materials in a specific configuration. When selecting construction designs to meet certain fire resistance requirements, caution must be used to ensure that each component of the assembly is the one specified in the test. Further precautions should be taken that assembly procedures are in accordance with those of the tested assembly. For coies of specific tests, call 1-800-NATIONAL. |