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(5) Do one of the steps to dry the plug material:
CAUTION: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO DRY THE
_______ INSULATION COATING SYSTEM. THE BMS 10-102 INSULATIVE SYSTEM CAN NOT DRY CORRECTLY BELOW 70°F. THE PROPERTIES OF THE INSULATION AND THE RATE TO DRY CAN CHANGE. IF YOU DO NOT OBEY THESE INSTRUCTIONS, YOU CAN CAUSE DAMAGE TO THE EQUIPMENT.
(a) Dry the plug at room temperature between 70°F and 90°F for 10 hours or until it has minimum hardness of 40 measured with a Shore A durometer.
NOTE: A durometer value of 40 is the same hardness as a rubber
____
band.
(b)
Dry the plug at a room temperature of between 70°F and 90°F for 2 hours and one hour at 160 |10°F. 1) The molded patch is dry when it has a minimum hardness of
40 measured with a Shore A durometer.
(c)
Remove the dried material from the mold.
(d)
Examine the molded patch for holes and wet areas.
1) Make sure the layers are smooth, free of blisters, and free of contamination.
(e)
Keep the dried plug material in containers to prevent damage and contamination (i.e. solvents/hydrocarbon fluids). 1) Prevent long exposure to sunlight.
(f)
You can apply an BMS 10-102 Type II top layer when the patch is dried. 1) Do the procedure: Apply the BMS 10-102 Type II Top Layer.
J. Use your BMS 10-102, Type II and these steps to apply the top coat of an insulative coating system:
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(1) Prepare the area.
(a) Sand the patch or repair area with 180 grit abrasive paper until it is smooth.
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(b)
Finish with a 240 grit or finer abrasive paper.
(c)
Remove the dust with a soft brush or a clean cheesecloth.
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(2) Prepare the BMS 10-102, Type II as follows:
(a)
Use the Thermolyte - 12 (Dibutyl Tin Dilaurate) or Nuocure 28 (Tin Octoate) to prepare the RTV60 sealant.
(b)
Mix the sealant before you add the catalyst.
(c)
Use the table in Fig. 801 to find the necessary pot life.
(d)
Add the catalyst to the sealant.
(e)
Mix the catalyst and the sealant fully.
(f)
Make the sealant thin with the naphtha 10 to 45 percent by volume so you can apply it with a brush. 1) Mix the sealant fully.
(g)
Use BMS 10-102, Type II to apply the Mold Patch.
1) Apply the BMS 10-102 Type II equally to cover the repair plug material and the mating area between the plug and existing insulation.
2) Permit the sealant to dry at ambient temperature.
NOTE: The sealant will stay tacky for 28-36 hours.
____
WARNING: DO NOT GET THE METHYL ETHYL KETONE (MEK) IN YOUR MOUTH OR
_______ EYES, OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM THE MEK. PUT ON A PROTECTIVE SPLASH GOGGLE AND GLOVES WHEN YOU USE THE MEK. KEEP THE MEK AWAY FROM SPARKS, FLAMES, AND HIGH TEMPERATURES. THE MEK IS A POISONOUS AND FLAMMABLE SOLVENT WHICH CAN CAUSE INJURY OR DAMAGE.
(h) Clean the brushes with the methyl ethyl ketone or naphtha.
K. Trowel Rework Method For Minor Damage To The Insulation
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(1) Trowel repair for scratches, cuts and other damage down to the base
material; limited to damage that goes down to the base material and
is not more than 0.5 inch (12.7 mm) in width.
NOTE: The troweled repair is for high contoured areas, and small or
____
detailed parts.
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