S 348-019
(2)
Rub the area and 2 inches more on all the sides of the area with abrasive paper until the area is not glossy.
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S 118-020
(3)
Clean the area with a cheesecloth that is soaked with naphtha.
S 118-021
(4)
Dry the area with a clean cheesecloth.
S 348-022
(5)
Follow the manufacturer's instructions to mix the BMS 8-201 resin and hardener.
S 348-023
(6)
Apply glass fabric that is soaked with the mixed adhesive and make an overlap of approximately 1/2-inch.
NOTE: Use 50 percent more glass fabric than the initial skin.
____
S 348-024
(7)
Let the glass fabric and adhesive cure for 24 to 36 hours at 75 to 90°F, or for 3 to 4 hours at 140 to 160°F.
S 348-025
(8)
If this is a decorative panel, do the procedure to repair the decorative surface.
J. Repair Panels that have Core Damage
NOTE: Use this procedure to repair panels that have
____
more than 0.5 inch of damage and damaged core.
There are two procedure for this repair.
S 348-113
(1)
Remove the damaged skin until you can see at least 0.5-inch of core that does not have damage.
(2)
Remove the damaged part of the core.
S 348-026
NOTE: Make sure 0.5 inch of core without damage is shown
____
on all sides of the damaged area.
S 118-027
(3)
Clean the area with a cheesecloth that is soaked with naphtha.
(4)
Dry the area with a clean cheesecloth.
S 118-028
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S 348-029
(5) Repair Procedure I
(a)
Mix (by weight) 109 parts of EC 3532A/B resin part A to 100 parts of part B.
(b)
Bond a piece of foam with the adhesive mixture to the area where the damaged core was removed.
NOTE: The foam thickness must be the same thickness as the
____ honeycomb core that was removed from the damaged area.
(c)
Let the repair cure for 2 hours at 75°F, or for 45 minutes at 160°F.
(d)
Repair the skin with the steps given before for panels that do not have core damage.
S 348-030
(6) Repair Procedure II
(a)
Use the manufacturer's instructions to mix the Epocast 1618A/B.
(b)
Fill the damaged area with the adhesive mixture.
(c)
Let the repair cure for 3 hours at 75°F.
(d)
Repair the skin with the steps given before for panels that do not have core damage.
K. Repair Potted Inserts
S 348-031
(1)
Remove the damaged skin and approximately 1/2-inch more on all sides of the damage.
S 118-032
(2)
Clean the area with a cheesecloth that is soaked with naphtha.
(3)
Dry the area with a clean cheesecloth.
S 348-034
(4)
Cut around the insert from the back side of the panel with a hole saw or an equivalent tool.
S 118-033
NOTE: Be careful not to cut the front side of the panel.
____
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