Sto BTS® Plus

Sto BTS® Plus — High-Strength Adhesive & Base Coat for EIFS
Achieve fast, flexible wall cladding installation with Sto BTS® Plus — a polymer-modified, cement-based adhesive and base coat for use in StoTherm® ci and StoTherm® ci Mineral Systems. Trusted for its high bond strength, smooth application, and reliable performance, this dual-purpose product simplifies façade prep for professionals.

Looking for one solution for both bonding and base coating? Sto BTS® Plus delivers strength, speed, and durability in every bag.

• Adhesive and base coat in one product
• Polymer-modified for crack resistance and strength
• Applies up to 1/16" in a single pass for fast coverage
• Vapor permeable to prevent blisters and moisture issues
• Low cement content reduces efflorescence and lime exposure

System Composition & Coverage

• Material Type: Polymer-modified cementitious dry powder (mix with water)
• Packaging: 47 lb. bag
• Coverage Rates:
  • Adhesive over sheathing/smooth masonry: 90–135 sq ft per bag (1/2" x 1/2" U-notched trowel)
  • Adhesive over rough masonry: 30–45 sq ft per bag (5/8" x 5/8" square-notched trowel)
  • Base coat: 80–125 sq ft per bag
  • Skim coat: 90–135 sq ft per bag

Product Bulletin

Safety Data Sheet