| CONTRACTORS
GUIDE |
Section 3 - THREE COURSE REPAIR |
The 3-course repair system is formed by sandwiching
either FIBERGLASS
MEMBRAME (ME-114) or POLYESTER MEMBRANE
(ME-272) between thin
layers of POLAR CAP WHITE ELASTOMERIC PLASTIC CEMENT
(PC-107). It is used
to seal ducts, vents, skylights, and repair damaged
seams, tears and holes.PRODUCTS REQUIRED:
POLAR CAP WHITE ELASTOMERIC PLASTIC
CEMENT (#PC-107)
FIBERGLASS MEMBRANES (ME-114)
POLYESTER MEMBRANE (ME-272)
NOTE:
This buttering grade
product is easy to use and requires less product as a
result. Coverage rate for POLAR CAP WHITE ELASTOMERIC PLASTIC
CEMENT (PC-107) in
three course repair is 30-40 linear ft per gallon when
using 4" membrane, or 15 to 20 square feet per
gallon.
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| 3-1 GENERAL 3 COURSE REPAIR
RECOMMENDATIONS: |
1. Using a brush or
putty knife, apply POLAR CAP WHITE ELASTOMERIC
CEMENT (PC-107).
2. Lay out the fabric
membrane, brushing the surface to embed the membrane
into the plastic cement.
3. Apply a second
layer of POLAR CAP WHITE ELASTOMERIC CEMENT
(PC-107) and
smooth out and feather-edge to completely conceal the
fabric membrane.
4. Extend the 3 Course
repair 3" to 6" beyond the defect. Be sure
to overlap membrane ends as well.
5. Allow 24 hours cure
time before applying primers or roof coatings.
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| 3-2 BLISTERED BUR REPAIR
RECOMMENDATIONS: |
1. Cut an X with a
sharp knife. Allow any trapped moisture to air dry.
2. Trim edges of the
cut felt so it lays flat.
3. Coat inside of
blister with POLAR CAP WHITE ELASTOMERIC PLASTIC
CEMENT (PC-107)
and press felt into place.
4. Repair cut edges
with a 3 course repair system.
IMPORTANT - CURE TIME IS
AFFECTED BY WEATHER CONDITIONS
(SEE SECTION 11-1)
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