Specification

Surface Prep / TDS-258
1 Product Name
MBP - Multi-Surface Bonding Primer
2 Manufacturer
Custom Building Products
13001 Seal Beach Blvd.
Seal Beach, CA 90740-2757
Customer Support: 800-272-8786
Technical Services: 800-282-8786
Fax: [phone]
Email: [e-mail]
custombuildingproducts.com
3 Product Description
Multi-Surface Bonding Primer (MBP) is a single-component, water-
based primer engineered to deliver superior adhesion on a variety of
substrates where proper bonding is difficult. Specially formulated with
aggregates and polymers to promote mechanical adhesion on non-
porous substrates.
Key Features
Ready-to-use primer
Unsurpassed adhesion on difficult-to-bond substrates
For use on porous and non-porous surfaces
One-coat application
No shot blasting or abrasion required
Uses
Prepares surface with a textured finish that is suitable for installation
with modified cement mortar and self-leveling underlayments.
Suitable Substrates
Well bonded water resistant cutback or old adhesive.
Non-porous concrete
Porcelain & Ceramic tiles with Glazed or Smooth surfaces
Exterior grade plywood and OSB (interior only)
Epoxy Coating
Cement and Epoxy Terrazzo
Quarry Tile
Natural stones
VCT
Vinyl flooring
Moisture Vapor Barrier (TECH MVC)
Moisture Vapor Barrier (Sheet Goods)
Laminates
Rigid Fiberglass panels
Primer for some tile backed with epoxy resin for interior residential
and light commercial applications - contact Custom Technical Services
for more information
Sizes
1 gallon pail
3.5 gallon pail
Limitations to the Product
Application temperature must be between 50°F–95°F
Do not subject to prolonged water immersion
Do not use over bond inhibiting or bond breaking materials such as
curing compound
Do not apply over dusty substrates.
Do not dilute
Do not use over saltillo tile
Do not use on exterior commercial applications
4 Instructions
General Surface Prep
Ambient temperature, surfaces and materials should be maintained at
atemperaturebetween50°F(10°C)and95°F(35°C)for72hours
during application. Surfaces must be structurally sound, clean, dry and
free from grease, oil, dirt, curing compounds, sealers, adhesives or
any other contaminant that would prevent a good bond. Existing
finishes must be well bonded to the substrate. Concrete must be
cured. Concrete must be free of efflorescence and not subject to
hydrostatic pressure. Plywood flooring including those under resilient
flooring must be structurally sound and meet all building code and
deflection requirements. Can be used on steel troweled finishes
without scarifying. For questions about proper subfloor installation, call
Technical Services.
Bonding to Cutback Adhesive
Adhesive layers must be removed. Use extreme caution; adhesives
may contain asbestos fibers. Do not sand or grind adhesive residue, as
harmful dust may result. Never use adhesive removers or solvents, as
they soften the adhesive and may cause it to penetrate into the
concrete. Adhesive residue must be wet-scraped to the finished
surface of the concrete, leaving only the transparent staining from the
glue. To determine desirable results, do a test bond area before
starting. Refer to the RFCI Pamphlet "Recommended Work Practices
for Removal of Resilient Floor Coverings" for further information.
Bonding Over Cured Moisture Vapor and Alkalinity Barriers
Moisture vapor control epoxy coatings must be fully cured and free of
pinholes and blisters before applying MBP. Do not dilute the primer.
Spread with a short nap roller at an approximate coverage rate of
150-300 square feet per gallon.
MBP - Multi-Surface Bonding Primer
Published Date: 7/16/2014