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Novolac Epoxy Crack Filler

Highly Chemically Resistant Gel

Epoxy Novolac Gel for Shallow Repairs on Vertical and Horizontal Surfaces

Epoxy.com Product #655


Epoxy Novolac Crack Filler Description

Epoxy Novolac Chemical Resistant Crack Filler Product #655 is a two component 100% solids Epoxy Novolac crack filler (gel) designed for shallow repairs on either vertical or horizontal surfaces. Because Epoxy Novolac Chemical Resistant Crack Filler Product #655 is a 100% solids formulation, it can be applied thicker on horizontal surfaces when required.

RECOMMENDED FOR

Epoxy Novolac Chemical Resistant Crack Filler Product #655 is recommended for repairing cracks and defects in concrete or masonry where a high chemical exposure is possible.

PRIMER

None necessary

TOPCOAT

Optional. This product can be over-coated with many suitable epoxy and urethane products.

LIMITATIONS

  • Color stability may be affected by environmental conditions such as high humidity, chemical exposure or exposure to certain types of lighting such as sodium vapor lights or UV light sources.
  • Colors may vary from batch to batch.
  • This product is not UV color stable.
  • Substrate temperature must be 5°F above dew point.
  • All new concrete must be cured for at least 30 days prior to application.
  • Allow the Novolac Epoxy Crack Filler to become tack free prior to topcoating. See application instructions.
  • Physical properties are typical values and not specifications.

MIXING AND APPLICATION INSTRUCTIONS

Epoxy Novolac Chemical Resistant Crack Filler Product #655

PRODUCT STORAGE

Store Epoxy Novolac Chemical Resistant Crack Filler Product #655 at normal room temperature before using. Continuous storage should be between 60 and 90°F. Low temperatures or temperature fluctuations may cause crystallization.

SURFACE PREPARATION

All dirt, foreign contaminants, oil and laitance must be removed to assure a trouble free bond to the substrate. A test should be made to determine that the concrete is dry; this can be done by placing a 4’ x 4’ plastic sheet on the substrate and taping down the edges. If after 24 hours, the substrate is still dry below the plastic sheet, then the substrate is dry enough to start repair work. This product is intended for hairline cracks and other fractures up to an 1/8 inch in width. Remove all unsound concrete from within the crack to be repaired and thoroughly vacuum all debris and dust from within the crack opening.

PRODUCT MIXING

This product has a mix ratio of 2 part A to 1 part B by volume. To mix, simply measure out two parts by volume for part A with one part by volume for part B. Mix the two components together thoroughly with slow speed mixing equipment such as a jiffy mixer, putty knife or spatula until the material is thoroughly mixed and uniform in color. Mix only an amount of material that can be used in the allotted pot life period. Insufficient mixing or improper mixing may result in product failure.

PRIMING

No priming is necessary.

PRODUCT APPLICATION

The mixed material can be applied by marginal trowel, putty knife or any other suitable equipment. Make sure that all unsound concrete is removed prior to repairing the area.

RECOAT OR TOPCOATING

Allow the Epoxy Novolac Chemical Resistant Crack Filler Product #655 to cure (tack free) prior to coating over the applied material. If excessive amounts are spread well beyond the crack repair or in areas where surface repairs have been implemented, it is best to check the cured areas for any possible amine blush (a whitish, greasy film or deglossing) prior to coating over this material. If a blush is present, it can be removed by any standard type detergent cleaner prior to topcoating or recoating. Many epoxy coatings and urethanes are compatible for use over this product as well as multiple coats of this product.

CLEANUP

Use Xylene.

FLOOR CLEANING

Caution! Some cleaners may affect the color of the fast set gel installed. Test each cleaner in a small area, utilizing your cleaning technique. If no ill effects are noted, you can continue to clean with the product and process tested.

RESTRICTIONS

Restrict the use of the area to light traffic and non-harsh chemicals until the coating is fully cured (see technical data under full cure). It is best to let the floor remain dry for the full cure cycle.

Properties

SOLIDS BY WEIGHT: 100%
SOLIDS BY VOLUME: 100%

VOLATILE ORGANIC CONTENT: 

Zero pounds per gallon
COLOR: Gray (when mixed)
RECOMMENDED THICKNESS: 1/8” cracks or thin build repairs

COVERAGE PER GALLON:

0.20 cubic feet or
1,842 lineal feet @ 1/8” x 1/8” for the 1 1/2 gallon kit.
MIX RATIO: 2 part A to 1 part B by volume
12.65 to 5.8 by Weight
PACKAGING 1.5 gallon and 3 gallon Units

SHELF LIFE:

1 year in unopened containers
HEAT DEFLECTION TEMP.: 52 degrees C (125.6 degrees F)
FLEXURAL STRENGTH: 8,200 psi @ ASTM D790
COMPRESSIVE STRENGTH: 10,100 psi @ ASTM D695
TENSILE STRENGTH: 6,150 psi @ ASTM D638
ULTIMATE ELONGATION: 2.3%
GARDNER VARIABLE IMPACTOR: 50 inch pounds direct – passed

ABRASION RESISTANCE:

Taber abraser CS-17 calibrase wheel with 1000 gram total load and 500 cycles= 34 mg loss
ADHESION: 430 psi @ elcometer (concrete failure, no delamination)

HARDNESS:

Shore D= 70
VISCOSITY Mixed: 1,372,800 cps (typical)
DOT CLASSIFICATIONS: Part A “not regulated” Part B “CORROSIVE LIQUID N.O.S, 8, UN1760, PGIII”

CURE SCHEDULE:

(70°) Pot life (1 1/2 gallon volume) 1-2 hours
Tack free (dry to touch) 8-12 hours
Recoat or topcoat 8-12 hours
Light foot traffic 12-18 hours

Full cure (heavy traffic)

2-7 days
Application Temperature: 60-90 degrees F

CHEMICAL RESISTANCE of

Epoxy Novolac Chemical Resistant Crack Filler Product #655:

CHEMICALRESISTANCE            REAGENT RATING 
butanol D
xylene D
1,1,1trichloroethane  C
MEK A
ethyl alcohol C
skydrol C
10% sodium hydroxide D
50% sodium hydroxide D
10% sulfuric acid D
70% sulfuric acid B
10% HC1 (aq) D
 5% acetic acidD
Rating key: A - not recommended, B - 2 hour term splash spill, C - 8 hour term splash spill, D - 72 hour immersion, E - long term immersion. NOTE: extensive chemical resistance information is available through your sales representative.

 

NOTICE TO BUYER: DISCLAIMER OF WARRANTIES AND LIMITATIONS ON OUR LIABILITY We warrant that our products are manufactured to strict quality assurance specifications and that the information supplied by us is accurate to the best of our knowledge. Such information supplied about our products is not a representation or a warranty. It is supplied on the condition that you shall make your own tests to determine the suitability of our product for your particular purpose. Any use or application other than recommended herein is the sole responsibility of the user. Listed physical properties are typical and should not be construed as specifications.

NO WARRANTY IS MADE, EXPRESSED OR IMPLIED, REGARDING SUCH OTHER INFORMATION, THE DATA ON WHICH IT IS BASED, OR THE RESULTS YOU WILL OBTAIN FROM ITS USE. N0 WARRANTY IS MADE, EXPRESSED OR IMPLIED, THAT OUR PRODUCT SHALL BE MERCHANTABLE OR THAT OUR PRODUCT SHALL BE FIT FOR ANY PARTICULAR PURPOSE. NO WARRANTY IS MADE THAT THE USE OF SUCH INFORMATION OR OUR PRODUCT WILL NOT INFRINGE UPON ANY PATENT.

We shall have no liability for incidental or consequential damages, direct or indirect. Our liability is limited to the net selling price of our product or the replacement of our product, at our option. Acceptance of delivery of our product means that you have accepted the terms of this warranty whether or not purchase orders or other documents state terms that vary from this warranty. No representative is authorized to make any representation or warranty or assume any other liability on our behalf with any sale of our products. Our products contain chemicals that may CAUSE SERIOUS PHYSICAL INJURY. BEFORE USING, READ THE MATERIAL SAFETY DATA SHEET AND FOLLOW ALL PRECAUTIONS TO PREVENT BODILY HARM.

Proper mixing and installation is critical to the optimal success of all product.  See Installation Tips, Techdata, & MSDS for more details on our products.  Be sure to contact us with any questions and/or concerns that you have.

For more information please contact:

Epoxy.com
A Division of Epoxy Systems, Inc
20774 W. Pennsylvania Ave.
Dunnellon, Florida 34431
Hundreds of Systems,
Since 1980 - 35 years
Florida & Vermont
USA


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