Lightweight. High Yield. Superior Workability.

USG Structo-Lite® Basecoat Plaster is a premium, perlite-aggregate gypsum plaster designed for interior walls and ceilings. It delivers exceptional coverage with reduced weight, making it easier to apply while maintaining strong, durable results.

Perfect for both residential and commercial projects, this basecoat plaster provides a smooth, high-quality foundation for finish coats.

Why Contractors Choose Structo-Lite®

✔ Lightweight Formula – Up to 40% lighter than traditional sanded basecoat plasters
✔ High Coverage – More square footage per bag = lower material cost
✔ Easy to Apply – Excellent trowelability and workability
✔ Strong & Durable – Resists cracking and shrinkage
✔ Versatile Use – Ideal for metal lath, masonry, and gypsum plaster base systems

Best Applications

• Interior wall and ceiling basecoat
• Renovations and patchwork
• Metal lath systems
• Veneer plaster systems (as a base layer)
• Commercial and residential builds

Product Specifications

• Weight: 50 lb bag
• Type: Gypsum basecoat plaster with perlite aggregate
• Coverage: Approx. 12–17 sq. ft. at ½" thickness (varies by application)
• Set Time: 2–3 hours (depending on conditions)
• Color: Off-white

Installation Overview

1. Mix with clean water to desired consistency
2. Apply over properly prepared substrate (lath or base)
3. Level and scratch surface for bonding
4. Allow proper set before applying finish coat

Pro Tips

• Use clean tools and water to maintain consistency
• Avoid overwatering—this weakens the mix
• Work within set time to ensure best finish
• Ideal working temperature: 50°F–100°F