WATERPROOF PLY
VIPRAM marine plywood is described in the supplied product material for use in moisture-prone conditions, with layered construction and water-resistant bonding.

Marine plywood for
moisture-prone conditions.
Marine plywood overview
VIPRAM marine plywood is presented in the supplied description as a product designed for conditions involving moisture, humidity, termites and borers. The source describes a focus on product quality, customer requirements and a streamlined manufacturing process.
The supplied material describes marine plywood as having multiple layers for strength and dimensional stability, with phenol-formaldehyde adhesive used to bond veneer layers. It also describes water resistance and dimensional stability as helping the panel withstand moist conditions while reducing the risk of delamination, swelling, warping, and water penetration through voids or gaps.
Construction and performance
The provided description refers to hardwood veneers, layered construction and water-resistant bonding. It also describes the product as intended for use in high-moisture conditions where other plywood may deteriorate more quickly.
The details on this page follow the product information supplied for VIPRAM Waterproof / Marine Ply.
KEY FEATURES
OUR RESPONSIBILITIES
Technical specifications (IS:710)
| Test | ISI Requirement | Observed Value |
|---|---|---|
| Moisture Content | 5%–15% | 8% |
| Glue Shear Strength (Dry State) | Min. individual 1100 N; min. average 1350 N | 1350 N; 1500 N |
| Adhesion to plies | Minimum pass standard | Excellent |
| Glue Shear Strength (after 72 hrs. boiling) | Min. individual 800 N; min. average 1000 N | 1150 N; 1250 N |
| Tensile Strength | Along grain: 4200 N/sq. mm; across grain: 2500 N/sq. mm; sum: 8450 N/sq. mm | Along grain: 5500 N/sq. mm; across grain: 3950 N/sq. mm; sum: 9400 N/sq. mm |
| Static Bending Strength — Modulus of Rupture | Along grain: 50 N/sq. mm; across grain: 30 N/sq. mm | Along grain: 65 N/sq. mm; across grain: 40 N/sq. mm |
| Static Bending Strength — Modulus of Elasticity | Along grain: 7500 N/sq. mm; across grain: 4000 N/sq. mm | Along grain: 8305 N/sq. mm; across grain: 4170 N/sq. mm |
KEY FEATURES
Product features supplied for the VIPRAM marine plywood page.
15 Ply Construction for High Density
Three Stage Treated Panel
Hardwood Core and Panel
Advanced Catalyst Mixed Glue
