Gel-Tac® 21420N

Identification

Carrier

Water

GBU

HHC

RTU Product Type

Waterborne Adhesive,

Microsphere Adhesive

Categories

Technologies → Adhesives & Sealants → Product Families → Bonding Technology → Water-Based Adhesives

Technologies → Adhesives & Sealants → Product Families → Pressure Sensitive Adhesives, Tapes & Labels → Microsphere Technology

Applications

Application Method

Extrusion,

Reverse Roll Coating

Compatible Substrates & Surfaces

Polyesters,

Polypropylene (PP)

Segment

Tapes, Labels, and Graphics

Applications & Uses

Product Application

Designed for transfer coating onto Polypropylene and Polyester substrates. Peel values typically realized are in the range of 3 – 6 oz/inch (85 – 170 g/2.5cm). This product can be coated onto release liner using conventional coating methods such as reverse roll and extrusion. 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.

Features

Ready-to-Use Product Features

Low Tack,

Water-based,

Clean Removability

Features & Benefits

Product Characteristics

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

Packaging & Availability

Regional Availability

• Latin America

Properties

Application Temperature:

-6.7~43.3 °C

Particle Size:

20.0 microns

Shelf Life:

5.4 months

Solid Content:

41.0~43.0 %

Viscosity:

1400.0~2000.0 cps

pH:

8.5~10.0

Performance Properties

	Value	Units	Test Method / Conditions
Application Temperature	- 6.7 to 43.3	°C	-
Service Temperature	- 23.3 to 48.9	°C	-

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.

Storage & Handling

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.

Shelf Life

180 days