FloorPrep Stucco Systems
Universal Stucco Base Coat
Contractor-grade pre-blended scratch and base coat designed for stucco systems, offering excellent workability, strong adhesion, and ASTM-compliant performance.
FloorPrep Universal Base Coat is a versatile stucco scratch and base coat that can be trowel applied or spray applied. Available in both gray and white, it meets ASTM C926 requirements and is suitable for a wide variety of stucco and EIFS applications.
Product Highlights
Bag Size
50 lb
22.7 kg bag
Coverage
50 Sq Ft
At 1/8" thickness
Working Time
45 Min
Depending on conditions
ASTM
C926
Compliant system
Technical Specifications
Application Thickness
Typical application thickness ranges from 1/8" to 1/4".
Mix Ratio
Mix approximately 6 quarts of water per 50 lb bag.
Set Time
Approximately 25 hours depending on project conditions.
Available Colors
Available in gray or white.
Key Benefits
Trowel or Spray Applied
Flexible application methods for residential and commercial projects.
Contractor Grade Formula
Pre-blended for jobsite consistency and reliable performance.
Strong Base Layer
Designed to create a durable scratch coat and base coat for stucco systems.
ASTM Compliant
Meets ASTM C926 requirements for portland cement-based plaster applications.
Suitable Substrates
Gypsum Sheathing
Compatible with exterior grade gypsum sheathing meeting ASTM G79 requirements.
EPS Insulation Board
Suitable for expanded polystyrene insulation board applications.
Cement Backer Boards
Compatible with Durock®, PermaBase®, Fiber Rock®, and similar approved boards.
Masonry & Concrete
Suitable over clean, unpainted masonry, concrete, brick, and metal lath.
Fiberglass Mesh
Designed for embedding fiberglass reinforced mesh fabrics.
Interior Applications
Recommended for installation temperatures above 40°F.
Downloads
Universal Base Coat Technical Data Sheet
PDF — technical specifications, coverage, mixing instructions, and installation guidelines.
Universal Base Coat Safety Data Sheet
PDF — safety information, handling procedures, storage recommendations, and regulatory data.
Universal Base Coat provides an excellent foundation for stucco and EIFS systems, delivering strong adhesion and consistent jobsite performance.
Always follow manufacturer mixing ratios, substrate preparation requirements, and application procedures for optimal results.
