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
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
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 .
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
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
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