CHO-BOND 1086 is an air drying liquid coating, silicone adhesive primer
Parker Chomerics CHO-BOND primers 1085 and 1086 are air-drying liquid coatings used to improve the adhesion of Parker Chomerics CHO-BOND conductive silicone compounds to metal and other non-silicone substrates. The primers are moisture reactive and clear in color. CHO-BOND 1085 primer is formulated to achieve maximum adhesion on non-silicone substrates for CHO-BOND 1029 adhesive. CHO- BOND 1086 primer is formulated for use with CHO-BOND 1016,1030, 1035, 1038, 1075 electrically conductive adhesives/sealants and CHOTHERM ® 1641 thermal compound. Note that typically, the proper primer comes bundled as a “kit” with the CHO-BOND or CHO-THERM compound ordered. However, if extra primer is deemed necessary, then part numbers for just the primer are provide in Table 2. See the Conductive Compounds Selector Guide for a more detailed listing of which CHO-BOND adhesive / sealant part numbers come packaged as a kit with the primer and which do not
|Typical Properties||Primer 1085||Primer 1086|
|Viscosity @ 25°C (77°F), centipoise||5||5|
|Flash point, °C (°F)||14 (57)||6 (43)|
|Use Temperature, °C (°F)||-80 to 200 (-112 to 392)||-80 to 200 (-112 to 392)|
|Elevated Temperature Cure||None||None|
|Room Temperature Cure||0.5 hr||0.5 hr|
|Shelf Life, unopened, from Date of Manufacture||9 months at 25°C (77°F)||9 months at 25°C (77°F)|
|Minimum thickness recommended||0.0001 in (0.00254 mm)||0.0001 in (0.00254 mm)|
|Maximum thickness recommended||0.0005 in (0.01270 mm)||0.0005 in (0.01270 mm)|
|Volatile Organic Content (VOC)||731 g/l||774 g/l|
- Surfaces to be joined must be clean, dry and oil free. In a well-ventilated area, clean the substrates with isopropyl alcohol (IPA) and let the solvent flash off. (Other solvents, such as methyl ethyl-ketone (MEK), toluene, or acetone can be used to clean difficult to remove contaminants).
- Wet a lint-free cotton cloth with the primer and apply to the surface in horizontal and vertical strokes. Keep the surface wet at all times. A cotton swab is a common applicator for a grooved or stepped surface. NOTE: Due to the low flash point temperature of the primer, ensure that the container is re-sealed immediately after use.
- The primed surface must cure for 30 minutes at room temperature. A relative humidity of 40% to 70% is optimal. A low humidity level may require a longer cure time. NOTE: There is no elevated temperature cure time for the primer.
- Apply the CHO-BOND / CHOTHERM adhesive / sealant per that product’s instructions. NOTE: If the primer has been applied for more than 4 hours without the application of the adhesive / sealant, repeat steps 1 through 4.
|Product||Weight (grams)||Packaging||Part Number|
|CHO-BOND 1085||400||1 pint can||50-01-1085-0000|
|CHO-BOND 1086||10||3 gram glass vial||50-10-1086-0000|
|95||4 fluid ounce glass bottle||50-04-1086-0000|
|375||1 pint can||50-01-1086-0000|