5 gal. plastic pail 52 lbs

BMI 100 Primer


BMI Acrylic Primer 100 is a premium acrylic protective exterior primer. Primer 100 can be used to protect most exterior surfaces including stucco, stem and foundation wall.

BMI Primer 100 is designed to be used over high pH cementitious surfaces such as stucco, tilt-up concrete, prepared masonry and brick.



Mix with a drill mixer for 1 minute, or until consistent, prior to use. Do not exceed 400 rpm. when mixing or the product could be air entrained which will decrease bonding characteristics. Up to 16 ounces of clean potable water may be added to BMI Primer 100 to aid in spray application.


Use BMI Primer 100 when surface and ambient conditions are above 40*F and below 100*F during application and cure time. Substrate should have a pH level of 12 or lower. BMI Primer 100 is not recommended for use on frozen substrates. Finish color is very consistent but may vary slightly depending on suction, drying time, application technique and ambient conditions. BMI Primer 100 should be protected from rain for a minimum of 24 hours (if curing at low temperatures, protect for 2 days).

Surface Preperation:

Surfaces must be clean and free of bond-inhibiting materials such as dirt, dust, rust, grease, oil, efflorescence, mildew, fungus, form-release agents, or any other contaminants. Remove or repair any loose paint, mortar, stucco, concrete or masonry by water-blasting, sand-blasting, scraping or using a wire brush. Substrate should be securely fastened. Repair all cracks with appropriate patching compound. Mask off area accordingly. Failure to prepare the surface correctly may result in product failure.


BMI Primer 100 exterior acrylic paint may be applied with brush, roller or approved spray equipment. If rolling apply evenly not allowing roller marks. Apply finish coat after prime coat has fully dried. If spraying material, spray in a side to side or up and down pattern. Always apply BMI Primer 100 in continuous application, working to a wet edge to avoid cold joints. Avoid water drops and runs on uncured material.


52 lb. pail BMI Primer 100 = 500-750 sq. ft per pail @ 4 mils. Dry thickness (coverage will vary depending on texture, substrate and suction).



White (custom colors are available upon request).

Shelf Life:

Twelve months when stored in a cool dry location 50* - 90*F. Keep out of direct sunlight and protect from freezing.


BMI Primer 100 average drying time averages 3 hours depending on ambient temperature, humidity and film thickness. BMI Primer 100 will dry completely within 12 hours.