Factory Finish

Cabot Stains Factory Finish Acryliblock Primer

Factory Finish Acryliblock Primer

Available Finishes
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Quick Facts

  • Featuring LokzAll Stain Locking Technology
  • Acrylic formula remains flexible
  • Resists cracking, peeling or blistering
  • Formulated specifically for machine application


Cabot Factory Finish Acryliblock Primer #5438 is an acrylic-based, exterior primer that is uniquely formulated with LokzAll™ Stain Locking Technology to provide resistance to extractive bleeding, and moisture problems. This unique formula chemically bonds with extractive tannin bleed and locks the unsightly discoloration into the primer. Its acrylic formula remains flexible, resisting cracking, peeling or blistering. Formulated specifically for machine application, when coated on all sides of the lumber, this primer makes an ideal base coat for Cabot Factory Finish, as well as Cabot PRO.V.T.™ Solid Color Acrylic Finishes, The Finish House and Trim Paint, and other 100% acrylic solid color finishes and paints.


Apply at 6 mils. Six (6) mils is measured with a wet film gauge. On smooth surfaces, approximately 250-300 square feet per gallon; on rough surfaces, 200-250 square feet per gallon. These rates will vary depending upon the porosity of the surface. Available only in five-gallon containers.

Where to Use

Factory Finish Acryliblock Primer provides superior performance and durability on exterior siding and trim. In addition, it provides excellent adhesion to all new, smooth, shiny (mill glaze) lumber. Factory Finish Acryliblock Primer is recommended for use on lumber such as cedar, incense cedar, fir, pine, cypress, spruce, redwood and plywood, including MDO panel siding, as well as hardboards and other manufactured wood sidings.

Preparing Your Surface

Proper surface preparation is the key to maximum finish performance. The durability of this product can be impaired by an unsound or poorly prepared surface. It is very important that the surface be clean of all dirt, mildew stains, loose wood fibers and other foreign matter. Surfaces must be dry. (Moisture content of wood must be below 15%.) Knots should be sealed with a high quality knot sealer.


Apply only by machine under factory-controlled conditions.

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