TDS
Revised 6/2014
TECHNICAL DATA SHEET
Revised 4/2019
This information is provided "as is" and no representations or warranties, either expressed or implied, of merchantability, tness for a particular purpose or of any other
nature are made with respect to this information or to any product referred to in this information. For SDS or to consult with a Behr Certied Coatings Professional,
call 1-800-854-0133 Ext. 2 (U.S.A. only). ©2019 Behr Process Corporation, Santa Ana, CA 92705 U.S.A.
INTERIOR/EXTERIOR BONDING PRIMER
NO. 432
PRODUCT INFORMATION
BEHR® Interior/Exterior Bonding Primer is specically formulated to bond to a variety of ‘tough-to-paint’ surfaces. Its
advanced chemistry provides a sound anchor for topcoats while reducing or potentially eliminating the need for sanding
dense and glossy surfaces. This product may be used under epoxies, lacquers, products containing xylene or other hot
solvents, provided it’s allowed to dry for 24 hours before topcoating and tested for compatibility in an inconspicuous area
before full coat application.
RECOMMENDED USES:
This primer securely bonds to hard-to-paint surfaces. Use over properly prepared uncoated or previously painted interior and
exterior surfaces such as:
• Concrete • Concrete Block/CMU • Fiber Cement • Brick • Stucco
• Plaster • Drywall/Gypsum Board • Wood • Engineered Wood • Wood Composites
• Ferrous Metals • Non-Ferrous Metals • Architectural Plastics • Vinyl/PVC • Fiberglass
• Chalky Surfaces • Glazed Tile • Glass • Paneling/Laminates • Galvanized Metal
• Annodized aluminium • Kynar® • Factory Finishes • Stainless Steel
PRODUCT SPECIFICATIONS:
Tint Bases/Max Tint Load:
No. 432 128 oz / 2 oz
Resin Type: Acrylic
Weight per Gallon: 11.5 lbs
% Solids by Volume: 42% ± 2%
% Solids by Weight: 58% ± 2%
VOC: < 100 g/L
Flash Point: N/A
Viscosity: 93 - 100 KU
Recommended Film Thickness:
Wet: 5.3 mils / Dry: 2.2 mils @ 300 sq ft/gal
Wet: 4.0 mils / Dry: 1.7 mils @ 400 sq ft/gal
Coverage: 300 - 400 sq ft/gal depending on the surface
texture, porosity and application method. Does not include
the loss of material from spraying.
APPLICATION:
Brush: Nylon / Polyester
Roller: 3/8” - 3/4” nap
Airless Spray: Fluid pressure of 1,800 - 2,500 psi
Tip: .015"- .021"
Filter: 60 mesh
Thinning: Do not thin if using a roller or brush; however, if
using a sprayer and thinning is required, thin with water at a
rate of no more than 1/2 pint per gallon.
Dry Time: @ 77°F, 50% RH
Longer dry time required in cooler temperatures and in
higher humidity.
To Touch: 30 minutes
To Recoat: 1 hour
SURFACE PREPARATION:
All surfaces must be clean, free of dust, chalk, oil, grease,
wax, polish, mold and mildew stains, loose and peeling
paint, rust and all other foreign substances.
New Drywall: All drywall surfaces should be suciently
sanded smooth. Remove any remaining drywall dust prior to
priming. Allow all drywall compounds to be completely dry
prior to coating.
New Wood: Remove mill glaze with sandpaper or use a
product such as BEHR PREMIUM® All-In-One Wood Cleaner
No. 63 to open the pores of the wood and follow all label
instructions. For severe stains caused by mold, mildew,
algae and fungus, apply a mildew stain removing product.
Set nails and ll holes, scratches, and gouges with the
appropriate wood ller and let dry completely. Remove all
dust with a wiping cloth. Fill all gaps with a 100% acrylic,
siliconized, paintable caulking and allow to dry completely.
Patched and lled surfaces should be sanded smooth and
dusted clean prior to coating.
WARNING! Sanding or scraping pressure treated lumber
may be hazardous; wear appropriate protection.
Weathered Wood Surfaces: To remove loose wood bers,
or poorly adhered coatings on new or weathered wood
decks, siding, fences, shakes and shingles, use a product
such as BEHR PREMIUM Wood Stain & Finish Stripper No. 64
and follow all label instructions. Use a product such as BEHR
PREMIUM All-In-One Wood Cleaner No. 63 and follow all
label instructions to clean and brighten the wood surface
and to remove light to medium stains caused by mold,
mildew, algae and fungus.
New Masonry (Stucco, Concrete, Concrete Masonry
Units (CMUs), Split-Faced Block): All masonry surfaces
must be cured at least 30 days before painting. The pH must
be 10.0 or lower prior to coating.
New Plaster: New plaster should be thoroughly dried out
and cured for a minimum of 30 days before painting. When
cured, clean using a mixed solution of one part vinegar and
one part water to remove eorescence and neutralize.
Steel: Minimum surface preparation is Hand Tool Cleaning
in accordance with SSPC-SP2. Remove all oil and grease from
the surface with a solvent in accordance with SSPC-SP1. For
optimal performance, use Commercial Blast Cleaning in
accordance with SSPC-SP6. Prime the area the same day as
cleaned.
Galvanized Steel: Solvent clean new galvanized metal in
accordance with SSPC-SP1 to remove oil and grease from
the surface. Pre-treat with a phosphoric acid solution or
a commercially-available etching solution. Galvanized
metal that has been passivated with chromates or silicates
may require brush blasting in accordance with SSPC-SP16
to remove these treatments. Rusty galvanizing requires a
minimum of Hand Tool Cleaning in accordance with SSPC-
SP2. Prime the area the same day as cleaned.
Shop-Primed Steel: As there is potential for many forms
of contamination during storage and transport, a thorough
cleaning is always recommended for shop-primed surfaces.
Paint exposed areas, i.e., where shop primer is abraded,
with the same material as used for shop priming to comply
with SSPC-PA 1 for touching up shop-primed surfaces.
Note: Assess the integrity of the shop primer prior to
application of subsequent coatings. Review all coatings
intended for the project and conrm the compatibility
between shop and eld-applied coatings.
Aluminum: Remove all oil and grease from the surface with
a solvent in accordance with SSPC-SP1. Prime the area the
same day as cleaned.
Previously Painted Surfaces: Remove all loose and
peeling paint and all other foreign substances. Clean any
dirt and grease by scrubbing the surface with a detergent
and water solution, followed by a thorough rinsing with
clean water. Set nails and ll holes, scratches, and gouges
with the appropriate wood ller and let dry completely.
Remove all dust with a tack or wiping cloth. Fill all gaps with
a 100% acrylic, siliconized, paintable caulking, and allow to
completely dry prior to coating.
COMPLIES WITH THE BELOW AS OF 4/1/2019
SCAQMD YES OTC YES
CARB SCM 2007 YES LADCO YES
CARB YES AIM YES
OTC PHASE II YES MPI# 17
This coating conforms to USDA regulatory requirements for incidental
food-contact materials intended for use on surfaces not in direct contact
with food, such as walls, oors and ceilings.
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