40 Lb Poly coated Kraft; paper side saturated with a nitrite free chemical compound which provides protection of ferrous metals.
Unit of Measure

Specifications

Typical Basis Weight. Lbs/R (245 x 36 - 500)

N/A 59 Lbs/R

TAPPI Test Method (Basis Weight)

N/A T-410

Typical Caliper

N/A 5.7 mil

TAPPI Test Method (Caliper)

N/A T-411

Typical Tensile Strength - Machine Direction

N/A 24 lb/in

Typical Tensile Strength - Cross Machine Direction

N/A 13 lb/in

TAPPI Test Method (Tensile Strength)

N/A T-404

Typical Tearing Strength, Elmendorf, gms. - Cross Machine Direction

N/A 13 g

Typical Tearing Strength, Elmendorf, gms. - Machine Direction

N/A 24 g

TAPPI Test Method (Tearing Strength, Elmendorf)

N/A T-414

Typical Bursting Strength

N/A 37 psi

TAPPI Test Method (Bursting Strength)

N/A T-403