Flex-Tec Information Sheet - His Glassworks

hisglassworks.com

Flex-Tec Information Sheet - His Glassworks

His Glassworks, Inc.

91 Webb Cove Road

Asheville, NC 28804 USA

828.254.2559p

828.254.2581f

www.hisglassworks.com

FLEX-TEC

INSTRUCTIONS AND TECHNICAL DATA SHEET

FLEX-TEC is an optically clear, low viscosity, shatter resistant elastomeric polyurethane coating developed for coating glass components to

prevent shattering. Recommended for sealing glass surfaces that may shatter upon damage and thereby maintaining the physical integrity

of glass components should the glass itself break. This two-part coating material is easily mixed and cured at room temperatures and

develops strong, tough bonds to glass and ceramics. FLEX-TEC also offers marginal resistance to impact as the coating forms a thin, yet

flexible and resilient coating.

Before proceeding with FLEX-TEC usage, you should read and understand the following information to ensure the correct application of

the material.

Preparation and mixture of FLEX-TEC:

FLEX-TEC Preparation: Both parts of FLEX-TEC must be water clear and not cloudy. Part B, if stored or transported in

temperatures below 65 degrees F (18ºC), may become cloudy. Simply warm Part B to about 90 degrees F (32ºC) to clarify.

Shake or stir Part B thoroughly before use as the components of Part B will separate if allowed to sit.

Mixture: The correct mix ratio for FLEX-TEC is 1 part of A to 1 part of B by weight. Mix throughly. FLEX-TEC is a 100%

solid and cures by chemical reaction, not by air drying. Do not attempt to thin FLEX-TEC as this will cause adverse reactions to

the surface.

Vacuum degassing: This is possible with FLEX-TEC if bubble free coatings are required. Two to three minutes of vacuum is

normally sufficient.

FLEX-TEC UV STABILIZED ANTI-SHATTER

Flex-Tec is available in 1/2 pound sample kits,

2 pound, 4 pound and 16 pound kits.

Coverage is roughly 18 square feet per pound

with a single coat.

DIGITAL SCALE

Flex-tec should be weighed out 1:1 in order to

achieve an adequate coating for your glass. We

have larger pound scales available that make

this process very simple.


Application of FLEX-TEC:

Glass substrate preparation: Clean the glass throughly with alcohol or acetone. Surfaces should be clean, dry and free of all oils,

grease or any other physical contaminants. Contaminants on the glass will prevent proper adhesion. Do not use commercial glass

cleaners as they often contain surfactants, which may interfere with adhesion.

Application: FLEX-TEC may be applied to surfaces by pouring, brushing, rolling, or dipping. As this material has a low viscosity,

it may be advisable to apply one or more over coats during the Over coat period (see below), followed by the recommended

Curing procedure (see below). FLEX-TEC is best applied at room temperature (70–75 degrees F, 21–24ºC). Do not attempt

application beyond the FLEX-TEC pot life time (see below).

Over coat: Between 2–4 hours. Two coats of FLEX-TEC are generally recommended for maximum performance.

Curing: After final application the FLEX-TEC should remain undisturbed for 6 hours (see below for Pre-Cure). Following the

Pre-Cure, there can be a Post-Cure cycle of heat at 150 degrees F +/-10 degrees (66ºC) for a period of 6–8 hours. Full cure can

also occur at room temperature with an additional 3–4 day cycle after the Pre-Cure step. The surface may remain slightly tacky

until it is fully cured.

Safety Requirements:

Ventilation: Provide general or local exhaust. Local exhaust ventilation is preferred because it prevents contaminant dispersion

into the work area by controlling it at its source.

Protective Clothing/Equipment: Wear chemically protective gloves, boots and aprons to prevent prolonged or repeated skin

contact. Wear protective eyeglasses, chemical safety goggles or face protection. Contact lenses are not protective devices.

Appropriate eye protection must be worn instead of, or in conjunction with contact lenses.

Handling Precautions: Minimize breathing of vapors and avoid prolonged or repeated contact with skin. Wear proper protective

equipment. If ventilation is not sufficient, wear proper respiratory equipment. Avoid moisture contamination. Be sure that partial

containers are well sealed after use.

Clean up: All equipment should be cleaned IMMEDIATELY with acetone or alcohol. Clean up skin contact with soap and plenty

of water. DO NOT clean your hands with acetone.

Storage Requirements: Store in a cool, dry, well ventilated area. Warm both parts prior to use to insure clarity of Part B.

Comments: Never eat, drink or smoke in work areas. Practice good personal hygiene after using this material, especially before eating,

drinking, smoking, using the toilet or applying cosmetics.

Material Saftey Data Sheet: MSDS is available online at http://www.hisglassworks.com/files/Flex-Tec_MSDS.pdf

Packaging: Available in 1/2 pound sample kits, 2 pound, 4 pound and 16 pound kits.


WORKING PROPERTIES

POT LIFE (WORK TIME)

POT LIFE (WORK TIME)- EXTENDED TIME FLEX-TEC

GEL TIME BEGINS (VARIES WITH APPLICATION TEMPERATURE)

PRE-CURE SCHEDULE

FULL CURE AT ROOM TEMPERATURE

ACCELERATED FULL CURE

15 MINUTES FROM MIXTURE

1 HOUR FROM MIXTURE

20 MINUTES TO 1 HOUR@ 75ºF (25ºC)

6 HOURS @ 75ºF (25ºC) MINIMUM

4 DAYS @ 75ºF (25ºC) MINIMUM

6–8 HOURS @150ºF (66ºC)

PHYSICAL PROPERTIES

TYPICAL UNCURED PROPERTIES (LIQUID)

COLOR

CLEAR/COLORLESS

VISCOSITY, CPS MIXED (AFTER MIXING@75ºF [25ºC]) 900

CLEAN UP SOLVENTS

ACETONE/ALCOHOL

MIX RATIO (PARTS BY WEIGHT) RESIN (A)/ HARDENER (B) 1:1

TYPICAL CURED PROPERTIES (SOLID)

OPERATING TEMPERATURE RANGE

-60º TO 150ºF (-51º TO 66ºC)

HARDNESS, SHORE D 85-90

TENSILE STRENGTH

4,000 PSI

ELONGATION AT BREAK 180%

TEAR STRENGTH

370 PSI

SHRINKAGE

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