Gel-Tac® 377AC is a water-based microsphere adhesive ideal for applications needing low to medium tack and clean removability. It provides effective temporary bonding with easy and residue-free removal.

Application Method: Meyer Bar, Reverse Roll Coating

Compatible Substrates & Surfaces: Vinyl

Features: Clean Removability, Low Tack, Medium Tack, Water-based

    Enhanced TDS

    Identification & Functionality

    Features & Benefits

    Ready-to-Use Product Features
    Product Characteristics

    For use in applications that require the properties of low to medium tack and clean removability.

    Applications & Uses

    Application Method
    Compatible Substrates & Surfaces
    Product Application

    Designed for transfer coating onto vinyl substrates. This product can be coated onto release liner using conventional coating methods such as reverse roll and Mayer rod. It should be applied at amounts of 10 – 13 lbs. (dry)/3000 sq. ft. (16 – 21 g (dry)/sq. meter) for the purposes of initial evaluation.

    Application Instructions: This adhesive may separate over time; this is typical for this type of adhesive. Mix before use; adhesive will readily redisperse with mild agitation. Check pH in open coating pans and adjust to 9.0 – 9.5 with ammonium hydroxide solution, if necessary. If the pH of the adhesive falls below 8.0, coagulation may occur. Air operated diaphragm pumps are recommended to pump the adhesive. Avoid the use of high speed centrifugal pumps.

    Cleaning Instructions: The adhesive will clean up with water and mild soap when wet; dried material may require clean up with a solvent such as acetone or ethyl acetate.

    Properties

    Typical Properties
    ValueUnitsTest Method / Conditions
    pH8.5 - 10.0--
    Solids Content41 - 43%-
    Viscosity (at 21 - 23°C, Sp2, I00rpm)1 300 - 1 700cPs-
    Average Particle Size25micron-
    Performance Properties
    ValueUnitsTest Method / Conditions
    Application Temperature20 - 150°F
    Service Temperature- 10 to 120°F
    Polyken Tack150 - 300g-
    90° peel (5 min)200 - 400gdwell, SS

    Safety & Health

    Safety Advice

    Avoid contact with skin and eyes. Personnel should wear gloves and splash goggles when handling material. Product will irritate eyes if contact occurs. Skin irritation is possible on prolonged or repeated contact.

    Packaging & Availability

    Regional Availability
    • North America

    Storage & Handling

    Shelf Life
    180 days
    Storage Information

    For best performance, the product should be stored and used at 65 - 85°F. Do not freeze. Keep containers closed to maintain proper pH.