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Description for 3M 776
General purpose, solvent based adhesive/Coatings with good adhesion to synthetic rubber, metal, glass, and many plastics.Chemical Resistance gasoline, Chemical Resistance: Fluid Resistance: Resistance to Salt water, aromatic fuels, Hydrocarbons, Hot Oil, Fuel Resistant Application Type Bond, Coat 1 Part or 2 Part 1-Part Material Form Liquid Substrate Aluminum, Glass, metal, Many plastics, synthetic rubber, Steel Manufacturer 3M Chemistry MIBK, Solvent-Based, Ethanol Cure Method Solvent Cure Time (min) 1,440 Viscosity (cPs) 1,000 to 2,000 Color Transparent Amber Oil Resistance oil High Temperature Resistance (°C) Heat resistance Low Temperature Resistance (°C) -54 Key Specifications Mil-Spec (United States Military Standard): MIL-D-17951E -
Technical Data for 3M 776
Overview
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Chemical Resistance
- Chemical Resistance : Fluid Resistance : Water Resistance - Resistance to Salt water
- Chemical Resistance - gasoline, aromatic fuels, Hydrocarbons, Hot Oil, Fuel Resistant
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1 Part or 2 Part
- 1-Part
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Material Form
- Liquid
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Industry
- Other - tanks (aluminum or steel)
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Chemistry
- Solvent-Based
- Other - MIBK, Ethanol
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Application Method
- Dispenser - flow applicator
- Brush
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Cure Method
- Solvent
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Color
- Clear / Transparent - Transparent Amber
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Key Specifications
- Mil-Spec (United States Military Standard) : D-17951E - MIL-D-17951E
Specifications
Cure Specs
Cure Time (min) 1,440 Viscosity (cPs) 1,000 to 2,000 Tack Free Time (min) 20 Bond Strength
Peel Strength (piw) 3, 5, 8, 10, 10, 13 Test Method Material Resistance
Oil Resistance oil High Temperature Resistance (°C) Heat resistance Low Temperature Resistance (°C) -54 Moisture/Humidity Resistance Moisture resistance Other Properties
Flash Point (°F) 55.4 Test Method % Solids (%) 24 Test Method Business Information
Shelf Life Details Store 3M™ Fuel Resistant Coatings EC-776 or EC-776SR at 60-80°F (15-27°C) for maximum storage life. Higher temperatures reduce normal storage life. Lower temperatures can increase viscosity temporarily. Rotate stock on a “first in-first out” basis.;Standard shelf life for 3M EC-776 Coating is 12 months from date of shipment when stored at 60-80°F (15-27°C). Shelf Life Temperature (°F) 59 to 81 Shelf Life Type From date of shipment. Shelf Life (mon) 12 -
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Best Practices for 3M 776
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Surface Preparation
Surfaces to be coated should be clean, dry and free from oil or grease.
Note: When using solvents, be sure to follow the manufacturer’s precautions and directions for use for handling such materials
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Application
3M™Fuel Resistant Coatings EC-776 and EC-776SR may be applied by brush or flow applicator. When applying in multiple coats allow a minimum of 10 minutes between coats. Under normal atmospheric conditions this coating becomes tack free in about 20 minutes and should thoroughly dry in approximately 24 hours. Fuel Resistant Coatings EC-776 and EC-776SR are commonly used without heat cure. Heat curing Fuel Resistant Coatings EC-776 and EC-776SR for 1 hour at 250°F will increase moisture resistance of the coatings.
Coverage is approximately 320 square feet per gallon for a 1 mil dry film.
Surfaces to be coated should be clean, dry and free from oil or grease.
Fuel Resistant Coatings EC-776 and EC-776SR may also be used to coat tanks (aluminum or steel) by the fill and drain method. It is sometimes desirable to dilute Fuel Resistant Coatings EC-776 and EC-776SR with methyl ethyl ketone or solvent such as 3M™ Scotch-Grip™ Solvent No. 3 to assure proper run out or flow properties when using the fill and drain method. An air hose inserted into the fuel tank can be used to help provide air circulation for proper drying.
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Clean-Up
Clean up can be accomplished with 3M™ Scotch-Grip™ Solvent No. 3. See 3M™ Scotch-Grip™ Solvent No. 3 Technical Data Sheet for additional technical information.
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Comparable Materials for 3M 776
Spec Engine® Results
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Novec 2704 Electronic Grade Coating(3M)A single component fluorinated polymer It is designed for moisture and corrosion protection of printed circuit boards and electronic components, It is nonflammable, non-ozone-depleting, low in toxicity.
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Thixon 423 Clear(Dupont)A vulcanizing adhesive which can be used as a one-coat adhesive or as a covercoat adhesive. Can also be used as a one-coat adhesive for bonding thermoplastic polyurethanes to metal.
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Pliobond 35(Ashland)• General-purpose • VOC-compliant • thermosetting adhesive • outstanding dielectric properties
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Peel Strength Test Methods
| Peel Strength | Type | Substrate | Test Time | Test Temperature | Test Method |
|---|---|---|---|---|---|
| 3 piw | 180° Peel Strength | Canvas/steel | 1,440 min | 24°C | C-5H |
| 5 piw | 180° Peel Strength | Canvas/steel | 4,320 min | 24°C | C-5H |
| 8 piw | 180° Peel Strength | Canvas/steel | 7,200 min | 24°C | C-5H |
| 10 piw | 180° Peel Strength | Canvas/steel | 10,080 min | 24°C | C-5H |
| 10 piw | 180° Peel Strength | Canvas/steel | 20,160 min | 25°C | C-5H |
| 13 piw | 180° Peel Strength | Canvas/steel | 30,240 min | 25°C | C-5H |
Flash Point Test Methods
| Flash Point | Test Method |
|---|---|
| 13.0°C | closed cup |
% Solids Test Methods
| % Solids | Test Method |
|---|---|
| 24 % | By weight, Approx. |
