M-BLOC® Abuse Resistant Type X Gypsum Board
M-Bloc® AR Type X interior gypsum panels were designed and tested to not only provide exceptional resistance to mold and moisture, but superior resistance to abrasion, abuse and indention when compared to traditional wallboard. This Type X panel consist of an abuse defiant core encased in heavy abrasion, mold and moisture resistant blue face paper and brown back paper manufactured from 100% recycled paper. At an independent laboratory accredited in accordance with ISO 17025-2005, M-Bloc panels have been tested to the industry’s most rigorous standard achieving the best possible results per ASTM D3273, scoring a perfect 10 thus minimizing the risk of mold and mildew growth.
M-Bloc AR Type X interior gypsum panels are recommended for commercial and institutional construction where greater resistance to abrasion, abuse and indentation are required. These UL classified panels are allowed for use in any fire rated design where American Gypsum’s 5/8” Type X wallboard is approved. Additionally M-Bloc AR Type X panels can be used as a base for the adhesive application of ceramic or plastic tile in limited wet areas, e.g., bathrooms, kitchens, laundry, and utility rooms.
- Abrasion Resistance: Level 3
- Indentation Resistance: Level 1
- Soft Body Impact Resistance: Level 2
- Hard Body Impact Resistance: Level 1
M-Bloc IR Type X interior gypsum panels have achieved UL Environment’s GREENGUARD GOLD Certification. GREENGUARD Certified products are scientifically proven to meet some of the world’s most rigorous, third-party chemical emissions standards, helping reduce indoor air pollution and the risk of chemical exposure while aiding in the creation of healthier indoor environments. For more information, visit www.ul.com/gg
To obtain product certificate, please select the GREENGUARD link to the right.
|5/8" (15.9mm)||4' (1219mm)||8' (2438mm)||Tapered|
|5/8" (15.9mm)||4' (1219mm)||10' (3048mm)||Tapered|
|5/8" (15.9mm)||4' (1219mm)||12' (3658mm)||Tapered|
Special lengths or edges may be available on special order. Consult your American Gypsum sales representative for details.
Thermal Resistance “R” Value 5/8” = 0.61
Storage and Handling
M-Bloc AR Type X interior gypsum panels do not generate or support the growth of mold when they are properly transported, stored, handled, installed, and maintained. However, mold spores are present everywhere and when conditions are favorable; mold can grow on practically any surface. GYPSUM BOARD MUST BE KEPT DRY to prevent the growth of mold.
Gypsum board that has visible mold growth must not be used. For additional information refer to Gypsum Association publication, “Guidelines for the Prevention of Mold Growth on Gypsum Wallboard” (GA-238).
Gypsum board must be stored in an area that protects it from adverse weather conditions, condensation, and other forms of moisture. Job site conditions that can expose gypsum board to water or moisture must be avoided.
Gypsum board must be protected during transit with a weather-tight cover in good condition. Plastic shipping bags are intended to provide protection during transit only and must be promptly removed upon arrival of the load. Failure to remove the shipping bag can increase the likelihood of developing conditions favorable to the growth of mold.
Gypsum board must be stored off the ground and under protective cover. Sufficient risers must be used to assure support for the entire length of the wallboard to prevent sagging.
Gypsum board must be delivered to the job site as near to the time it will be used as possible. Individuals delivering gypsum board to jobsites should ensure that it is carried, not dragged, to place of storage/installation to prevent damage to finished edges.
Gypsum board shall always be stacked flat -NEVER on edge or end. Gypsum board stacked on edge or end is unstable and presents a serious hazard should it accidentally topple. Gypsum board should be placed so weight is evenly distributed and the floor is not overloaded.
Score of 10 (ASTM D 3273)
ASTM C 1396
Federal Specification - SS-L-30D Type III Grade X
|Soft Body Impact Resistance||
|Hard Body Impact Resistance||
|Surface Burning Characteristics||
ASTM E 84
Flame Spread - 0
Smoke Developed - 0
Fire Resistance Ratings
Our products can contribute to the following credits within the Materials and Resources (MR) category.
- LEED MR Credit 2: Construction Waste Management
- LEED MR Credit 4: Recycled Content
- LEED MR Credit 5: Regional Materials
Our products can contribute to the following credit within the Indoor Environmental Quality (IEQ) category.
- LEED IEQ Credit 4.6: Low-Emitting Materials - Ceiling and Wall Systems (SCHOOLS ONLY)
To learn more please click the LEED link at right.