​​​​​​​​​​​​​​​​​​​​​Cold Weather Alpha Dry Base Coat

Dry-mix polymer adhesive and base coat for use with Senergy Wall Systems during colder weather (35–50 oF).

​Temperature specific
Use when ambient temperature is between 35–50 °F​
​Fast set adhesive and base coat
​EPS and base coat same day application
​Dry, bagged product
​Does not require heated shipping or storage, just add water to mix​
​Mix only what you need
​Use for small repairs, reduces dumpster and landfill costs of pail disposal
​Lower cement-to-polymer ratio
​Reduces the chance for efflorescence
​Smooth, creamy consistency
​Trowels easily, speeds mesh embedment, reduces applicator arm fatigue, increases job-site productivity
​Water based
Safe, non-toxic, clean up easily with soap and water​


  1. ​For use with the BASF Wall System in cold weather (35–50 oF) to adhere expanded polystyrene insulation board to the following acceptable substrates: ASTM C1177 type sheathings, including DensGlass™ exterior sheathing, eXP™ sheathing, GlasRoc® sheathing, Securock™ glass-mat sheathing, Weather Defense™ Platinum sheathing, GreenGlass® sheathing, PermaBase™ cement-board by National Gypsum and other cement-boards (ASTM C1325 Type A Exterior), Untreated Exposure I or exterior plywood sheathing (grade C-D or better), Untreated Exposure I OSB, gypsum sheathing (ASTM C79/ASTM C1396), poured concrete/unit masonry. Note: Wood-based sheathing substrates require priming with a BASF Primer.
  2. ​To adhere expanded polystyrene insulation board to expanded polystyrene insulation board.
  3. For use with all BASF Wall Systems to embed Corner Mesh and BASF Reinforcing Mesh.​


22.6 kg per bag (50 lbs per bag)


Approximate coverage rates are as follows:
  1. ​Adhere EPS insulation board to substrate: 6.5 m² (70 ft²) per bag via notched trowel method
  2. Embed Standard Reinforcing Mesh: 11.1 m² (120 ft²) per bag, Embed Intermediate 12 Reinforcing Mesh: 7.8 m² ​(85 ft²) per bag, Embed Hi-Impact 20 and Standard Reinforcing Mesh: 6.5 m² (70 ft²) per bag
  3. Adhere EPS insulation board to substrate and embed Standard Reinforcing Mesh: 4.6 m² (50 ft²) per bag
​​​​​​Cold Weather Alpha Dry Base Coat

​​​​​​Cold Weather Alpha Dry Base Coat Product Bulletin