company tower banner
Mask-Off Company Company Logo
Protex 40S is a 4 mil latex saturated paper used for protection of stretched and flat acrylic, plexiglass, polycarbonate, and other plastic surfaces either in flat sheet or formed states.

Product Type: Masking Tape

Compatible Substrates & Surfaces: Acrylic, Glass, Metal, Painted Surfaces, Plastics, Polycarbonate (PC)

Features: Light Weight, Moisture Barrier

Technical Data Sheet
  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Backing Material Type
Product Type

Features & Benefits

Ready-to-Use Product Features

Applications & Uses

Uses

The largest single use for Protex 40S is for aircraft transparancies. The non-haze characteristics allows this material to remain on the transparancies through the entire manufacturing and shipping process, yet peel off leaving no residue. This product is not intended for fly-away applications. Do not use on copper, brass, or anodized aluminum, outdoor exposure is not recommended without prior testing.

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Basis Weight35 - 40lbs./3,000 sq. ft.
Elmendorf Tear (C.D.)min. 49grams
Elmendorf Tear (M.D.)min. 46grams
Elongation (M.D.)min. 2.5%
Tensile Strength (M.D.)min. 16.4lbs./inch
Thickness3.6 - 4.4mils
Adhesive Properties
ValueUnitsTest Method / Conditions
Adhesion to Steel20 - 25 (-4/+5)lbs./in. width
BaseAcrylic

Packaging & Availability

Stock Roll Sizes
  • 36" X 100 YRDS
  • 48" X 100 YRDS

Storage & Handling

Storage

Shelf life is 1 year if stored in a cool dry place, out of direct sunlight.