UltraStock® MDF products provide optimized panel solutions for a wide selection of performance characteristics and delivers test-proven thickness-swell resistance. Engineered to resist elevated moisture and humidity, UltraStock® MR meets the thickness swell and bond integrity criteria required for the MR 50 designation. It’s more proof that nobody treats you better than Georgia-Pacific.
Provides the same physical characteristics and workability as our premium panels.
Manufactured with 100% NAF resin.
Meets reduced thickness swell criteria of 5.5% or less.
Test samples meet bond integrity criteria of 50% of original MOR after accelerated aging.
Sink bases, dishwasher enclosures, wet-area residential applications
May be used on interior window and door trim, baseboards and laminate flooring that may become wet from mopping, condensation or even foot traffic.
Laboratories, locker rooms, laundry areas, cafeterias of schools, industrial facilities and other public buildings where wetness or high humidity are a factor.
All UltraStock MDF panels are recognized by the California Air Resources Board (CARB) as no added formaldehyde (NAF) products by Executive Order N-15-021a.
1/4” – 1-1/2”
|1/4” to <1/2” 1/2” to 3/4” >3/4”|
|4050 4050 4050|
|405 405 405|
|130 120 110|
|250 270 270|
|NA 250 250|
|✔ ✔ ✔|
|<5.5% <5.5% <5.5%|
|± 1/16” per panel|
|± 1/64” per ft. of length|
|± 1/64” per ft. of length|
|Awards 1 or 2 points for using products with recycled content that constitute at least 10% or 20%, based on cost, of the total value of project materials.|
|Awards 1 or 2 points for using materials on a project that are extracted and manufactured within 500 miles that constitute at least 10% or 20%, based on cost, of the total value of project materials.|
|Requires composite wood products used on project to demonstrate documented compliance with California Air Resources Board ATCM formaldehyde requirements for ultra-low-emitting formaldehyde (ULEE) resins or no-added-formaldehyde (NAF) resins.|
|Specifies architects to select low-VOC emitting materials|
|Use recycled content products in major areas such as walls, floor, insulation and roofing.|
|Wood or wood-based products available that are certified by Forest Stewardship Council™.|
|Wood-based components certified in accordance to CPA ECC 4-11.|
|In compliance with ANSI A208.1.|
|In compliance with CPA ECC 4-11.|
|Composite wood contains no urea formaldehyde.|
UltraStock MDF products produced in the Georgia-Pacific facility in Mt. Jewett, Pennsylvania, have been awarded the Composite Panel Association (CPA) Eco-Certified Composite (ECC) grademark which verifies compliance with the CPA 4-11 ECC Sustainability Standard, the California Air Resources Board (CARB) Airborne Toxic Control Measure (ATCM) 93120 and the EPA TSCA Title VI rule.
UltraStock MDF that is certified to conform to the requirements of Forest Stewardship Council® standards for FSC Mix Chain of Custody and Controlled Wood manufacturing is available by special order.
All UltraStock MDF is CARB and EPA TSCA Title VI compliant. This product contains no added formaldehyde.
Based on ANSI A208.2-2016 section 3.6, the moisture-resistance test criteria necessary to obtain an MR50 board designation are:
After the six cycles are completed, the specimens shall be conditioned at 68° ±6° F and a relative humidity of 65 ±2% for at least 48 hours before the MOR testing.