Gyp-Crete 2000®/3.2K Data Sheet - MAXXON

Product Description: Gyp-Crete 2000®/3.2K by Maxxon is a gypsum floor underlayment is engineered to deliver compressive strengths up to 3,200 psi (22.1 MPa), also delivering enhanced resistance to surface abrasions and even faster drying time.


This is a newer technology so it should work better than standard materials.

 It's ideal for use over wood or concrete subfloors in single family, light commercial, and multifamily construction, as well as renovation projects. Its crack-resistant surface provides a perfect base for practically any floor covering. Now always a "green" building material, Gyp-Crete 2000/3.2K is an ideal gypsum floor underlayment for sustainable building projects.

1 – CHECK FOR DRYNESS FIRST


Ensure for dryness are accurate relative humidity probe systems that allow for easy and continuous monitoring of the drying process. Watch the guideslines the respective floor goods manufacturer’s recommendations for relative humidity requirements.

For example, most flooring manufacturers typically require RH not exceeding 75-80%. Moisture meters can be used to determine approximate Moisture Content (MC) and determine where to place RH tests.

When a moisture meter is required, use a pin invasive type such as a Delmhorst model G-79 or Delmhorst BD2100. (On the model BD2100, make sure you are on Scale 3 “gypsum,” after this use the digital display only, do not use the color coded LED indicators). In pours over 11⁄2" thick use insulated pins  that can be drilled holes at various points and thicknesses. Ensure that it works well  with the floor goods manufacturer’s recommendations for moisture content — typically 5% or less on the above mete

Apply OVERSPRAY

 Make certain the surface to receive the Overspray is free of mud, oil, grease and other contaminants. For maximum results, the Overspray is applied about 1–2 hours before applying the adhesive application. Latex adhesives will not achieve maximum bond until moisture has dissipated. (Note: Level-Right® Maxx does not need to be primed.)


TIPS FOR USING WITH WOOD / LAMINATE FLOORING TYPES 

Prepare the underlayment according to Steps 1 and 2 on the cover of this brochure.

USING  GLUE-DOWN INSTALLATIONS . 

Other adhesives may also be compatible. Before applying any adhesive, make sure the luan underlayment is clean and has passed a dryness test. Apply primers and adhesives according to the manufacturer’s instructions.

QUESTIONS ABOUT UNDERLAYMENT AND INSTALLATION 

If you have any questions about the compatibility of primers and adhesives perform a small test patch installation. Let the test area set for 72 hours before removing the flooring


Instructions for using with Radiant Floor Heating Systems Luan Plywood

Adhesive based laminated hardwood systems are usually  the most stable flooring systems for use with radiant heat. The cross-plies of the flooring and underlayment make the surface very stable and resistant to excessive expansion and contraction. Many wood flooring manufacturers produce pre-finished, square-edge laminated hardwood floors that are indistinguishable from nail-down systems. Since laminated systems are generally thinner than nail-down systems, the radiant system performance is improved due to lower resistance from the floor covering.


When using with Solid Wood Flooring 


 Attach solid wood flooring according to the instructions 

 Make sure that you put the sleepers are installed directly on the luan plywoodsubfloor and tubing is installed between the sleepers. The spaces are then filled with an approved luan Underlayment to provide a thermal mass. Once the luan underlayment has dried, a vapor barrier is laid down and the flooring boards are nailed directly into the nailing sleepers that were installed on the luan plywood subfloor. The advantage of this system is that the flooring creates minimal insulation above the heating system. The disadvantage is that the flooring can only be nailed to a sleeper which may not provide enough fastening.