​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Xtra-Stop Base Coat

Xtra-Stop Base Coat is a 100% acrylic adhesive and base coat that is field-mixed with Type I or Type II Portland cement. It is noted for its water resistant properties.

Uses​

• Xtra-Stop Base Coat is designed for use as the adhesive and/or base coat in several wall systems from Senergy. 
• Xtra-Stop Base Coat is used with the Senerflex Wall System to adhere expanded polystyrene insulation board to the following acceptable substrates: 
• ​​Senershield
• Senershield-R
• Unpainted and unglazed concrete or unit masonry
• PermaBase^® brand cement board (or other ASTM C1325 Type A Exterior approved cement boards)
• ​Poured concrete/unit masonry
• Fiberock^® Aqua-Tough™ sheathing
• ASTM C1177 sheathings (eXP^® by National Gypsum, GlasRoc^® by Certainteed and DensGlass^® exterior sheathing)
• Gypsum sheathing (ASTM C79/C1396)
• New and untreated Exposure 1 or exterior plywood sheathing (Grade C-D or better)
• Exposure 1 OSB
  Note: Wood-based sheathing substrates require priming with Senerprim.

• Xtra-Stop Base Coat used with Senerflex EIFS, Senturion I, II, and III residential EIFS, Senergy Cement-Board Stucco System and all Senergy Surfacing Systems to embed corner mesh and Senergy Reinforcing Mesh.
• Xtra-Stop Base Coat will also adhere expanded polystyrene insulation board (EPS) to expanded polystyrene insulation board, enabling the build out of architectural shapes and details.

Packaging

27.2 kg per 19-liter pail (60 lbs per 5-gallon pail)

Coverage

Approximate coverage rates are shown.
Adhere EPS insulation board to substrate:​​

• 14.8 m² (160 ft²) per pail via notched trowel method
• ​16.7 m² (180 ft²) per pail via ribbon & dab method

​​​​Embed Flexguard​ 4: 26 m² (280 ft²) per pail​
Embed Intermediate 12: 18.5 m² (200 ft²) per pail​
Embed Hi-Impact 20 and Flexguard​ 4: 14.8 m²(160 ft²) per pail
Adhere EPS insulation board to substrate and embed Flexguard 4: 11.1 m² (120 ft²) per pail​​