Strait-Flex® OS-400
DESIGNED for outside 90° corners where large voids and irregularities occur
Diamond-punched paper edging allows for easier feathering, faster drying, and the highest bonding strength.
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OS-400 can also be used on double 5/8" drywall applications. The diamond-punched paper edging allows for easier feathering, faster drying, and the highest bonding strength. Also guarantees an even lay-down of the paper, providing maximum adhesion with no rippling or blistering. Apply with all-purpose joint-compound.
- Double 5/8" drywall applications and outside 90° corners where there are large drywall irregularities
- Clean installation
- Composite backing provides a tough, durable corner with no rust
- Nose resists dents and ensures perfect corners without paper fuzz-up during finishing and sanding
Product Data & Ordering Information
| Product code | Width | Length | Wholesale Case | |
|---|---|---|---|---|
| Pcs/Case Pack | Cases/Pallet | |||
| OS400-8 | 4" | 8' | 50pcs (400 lf) | 32 |
| OS400-9 | 9' | 50pcs (450 lf) | 32 | |
| OS400-10 | 10' | 50pcs (500 lf) | 32 | |
- Custom lengths available, 2 skid minimum




