Technical Data Sheet
4/14/2018
DFense Blok™ Surface Wetting Agent
Description:
Thixotropic epoxy gel system that improves ease of application and cured adhesion properties (shear, peel, impact) of
Devcon® DFense Blok™ abrasion resistant product.
Intended Use:
Apply to substrate surface prior to using DFense Blok™ for better adhesion.
Product
features:
Requires no waiting to apply topcoat
Excellent chemical resistance
Non-sagging
Typical
Physical
Properties:
Technical data should be considered representative or typical only and should not be used for specification purposes.
Limitations:
Recommended minimum application thickness of 0.01"
Surface
Preparation:
1. Thoroughly clean the surface with Devcon® Cleaner Blend 300 to remove all oil, grease and dirt.
2. Grit blast surface area with 8-40 mesh grit, or grind with a coarse wheel or abrasive disc pad, to create increased
surface area for better adhesion (Caution: An abrasive disc pad can only be used provided white metal is revealed).
Desired profile is 3-5mil, including defined edges (do not "feather-edge” epoxy).
Note: For metals exposed to sea water or other salt solution, grit-blast and high-pressure-water-blast the area, then leave
overnight to allow any salts in the metal to “sweat” to the surface. Repeat blasting to “sweat out” all soluble salts. Perform
chloride contamination test to determine soluble salt content (should be no more than 40ppm).
3. Clean surface again with Devcon® Cleaner Blend 300 to remove all traces of oil, grease, dust or other foreign
substances from the grit blasting.
4. Repair surface as soon as possible to eliminate any changes or surface contaminants.
WORKING CONDITIONS: Ideal application temperature is 55°F to 90°F. In cold working conditions, directly heat repair
area to100-110°F prior to applying epoxy and maintain at this temperature during product cure to dry off any moisture,
contamination or solvents, as well as to achieve maximum performance properties.
Mixing
Instructions:
---- It is strongly recommended that full units be mixed, as ratios are pre-measured. ----
1. Add hardener to resin.
2. Mix thoroughly with screwdriver or similar tool (continuously scrape material away from sides and bottom of container)
Cured Hardness Shore D ASTM D 2240
Compressive Strength ASTM D 695
Flexural Strength ASTM D 790
Adhesive Tensile Shear ASTM D 1002
TESTS CONDUCTED
Cured 7 days @ 75° F
Adhesive Tensile Shear
2,616 psi
Color
Orange
Compresive Strength
5,032 psi
Cured Hardness
71 Shore D
6,700 psi
Solids by Volume
100 %
Specific Volume
24.7 in(3)/lb
Temperature Resistance
300 °F
Uncured
Coverage
1860 sq in / lb @ 12 mil
Full Cure
16 hours
Functional Cure
4-5 hours @ 72°F
Mix Ratio by Volume
2:1
Mix Ratio by Weight
100:44
Mixed Density
9.2 lbs/gallon, 1.1 g/cc
Mixed Viscosity
Thixotropic Gel
Pot Life, 1 lb
12-15 minues @ 72°F
Topcoat Application Time
0-45 minutes
, 30 Endicott Street, Danvers, MA 01923 Tel:(855) 489-7262 ITWPerformancePolymers.com
ITW Performance Polymers
until a uniform, streak-free consistency is obtained.
INTERMEDIATE SIZES (1,2,3 lb. units): Place resin and hardener on a flat, disposable surface such as cardboard,
plywood or plastic sheet. Use a trowel or wide-blade tool to mix the material as in Step 2 above.
LARGE SIZES: (25 lb., 30 lb., 50 lb. buckets): Use a T-shaped mixing paddle or a propeller-type Jiffy Mixer Model ES on
an electric drill. Thoroughly fold putty by vigorously moving paddle/propeller up and down until a homogenous mix of resin
and hardener is attained.
Compliances:
None
Chemical
Resistance:
Storage:
Precautions:
Please refer to the appropriate safety data sheet (SDS) prior to using this product.
Warranty:
ITW Performance Polymers will replace any material found to be defective. Because the storage, handling and
application of this material is beyond our control, we can accept no liability for the results obtained.
Disclaimer:
All information on this data sheet is based on laboratory testing and is not intended for design purposes. ITW
Performance Polymers makes no representations or warranties of any kind concerning this data.
For technical assistance, please call 1-855-489-7262
Order
Information:
11340 1 lb kit
Application
Instructions:
- Add hardener to resin and mix thoroughly until colors blend and become uniform, approximately 3 minutes.
- Apply the mixture to surface with spatula, trowel, etc.
- Apply at a thickness of 0.01" to 0.02".
- Apply topcoat of Dfense Blok™ within 0 - 45 minutes of mixing/applying Dfense Blok™ Surface Wetting Agent. Should
this window be exceeded and the Dfense Blok™ Surface Wetting Agent becomes firm, a recoat with fresh Dfense Blok™
Surface Wetting Agent is recommended.
Store at room temperature, 70 °F.
Chemical resistance is calculated with a 7 day, room temp. cure (30 days immersion) @ 75°F)
FOR INDUSTRIAL USE ONLY
Gasoline (Unleaded)
Fair
Hydrochloric 10%
Very good
Mineral Spirits
Excellent
Sodium Hydroxide 50%
Excellent
Sulfuric 10% Very good
, 30 Endicott Street, Danvers, MA 01923 Tel:(855) 489-7262 ITWPerformancePolymers.com
ITW Performance Polymers