Versatile, high performance core or substrate
- Handles morcell nameasily than gypsum panels and particle board
- Outstanding versatility adapts to a variety of applications
- Simplified component assembly saves time and money
- Smooth, coated finish maintains tighter tolerance
- Exceptional tackability
- Good sound control
Micore® Brand 300 Board from USG is a superior substrate for fabric and vinyl-covered wall panels, office dividers and tackboards. An excellent core for chalkboards. stove boards, and similar applications. MICORE Brand 300 Board offers outstanding residence. superior machinability. high “k” factor, heavy density and highest surface hardness of any MICORE board
Specifications
| Density ( lb/ft³ ) | 24 ±2 |
|---|---|
| Modulus of Rupture ( lb/in² ) | 350 to 450 |
| Thickness ( in ) | 3/8 7/16 1/2 5/8 3/4 |
| Thickness ( mm ) | 375 438 500 625 750 |
| Modulus of Elasticity ( lb/in² ) | 30000 to 35000 |
| Tensile Strength (Parallel to Surface) ( lb/in² ) | 225 to 275 |
| Thermal Conductivity | k Factor - 0.458 R Value (1/2" board) - 1.09 |
| Tolerance of Thickness | ± 0.015" sanded and coated |
| Tolerance of Width and Length (per 4ft) | ± 1/16" (0.0625") |
| Surface Burning Characteristics - Flame Spread | 25 |
| Surface Burning Characteristics - Smoke Delivered | 10 |
| Weight ( lb/MSF ) | 500 to 2000 |
| Tensile Strength (Perpendicular to Surface) ( lb/in² ) | 20 to 30 |
| Hardness (Janka Ball) ( lb ) | 50 to 70 |
| Hygrometric Expansion From 50% to 90% R.H. ( % ) | 0.1 |
| STC Rating | 24 25 26 28 |
| NRC | 0.25 0.25 to 0.30 0.30 to 0.35 |
Advantages
MICORE Brand 300 board is nearly 50% lighter than particle board, which allows for easier handling and lower freight rates, it also outperforms gypsum panels in workability-the inorganic mineral fibers resist moisture, minimizing expansion and warpage. And the board cuts quickly to size and shape specifications using standard equipment while adapting readily to last-minute design changes. What’s more. MICORE Brand 300 Board outperforms particle board and other wood-fiber boards for flame spread and sound absorption
Storage and Handling
All materials shall be delivered in their original unopened packages and stored in an enclosed shelter providing protection from damage and exposure to thcell namelements. Damaged or deteriorated materials shall be removed from the premises.
Limitation
Exposure to excessive or continuous moisture should be avoided.