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© BTB Auto Glass & Body Shop Tools
2.2.7 Encapsulated Glass Removal using Reverse 'R-S'
And Reverse 'VR-S' Standard Serrated Blades
a. When using ORANGE and BLUE reverse serrated blades
for precision cutting against pinchwelds, as per
Diagram U
operate at approximately 45° to 90° and pull in a sideways or
backward sawing motion utilising the serrated edges of the
blade cutting tip, as per
Diagram Q
.
b. Use caution when operating ORANGE and BLUE reverse
serrated blades close to headliners or pillar / trim panels. If
required, protect or remove interior trims or headliner. Also
see
Diagram U
.
c. When using 'R' blades, always use a controller arm
between
the glass and blade.
GLASS
PINCHWELD
ADHESIVE
ENCAPSULATED
MOULDING
FLAT SIDE OF ORANGE OR BLUE
REVERSE BLADE AGAINST PINCHWELD
CONTROLLER
CAP
CONTROL ARM UNDER BLADE
PROTECT / REMOVE
PILLAR TRIM OR
HEADLINER
Diagram U
2.2.7.1 REMOVAL OF ENCAPSULATED GLASS FOR
RE-INSTALLATION
For safe removal of undamaged encapsulated glass it is necessary
most times to use BTB’s specially designed reverse bend 'R-S'
(orange) and 'VR-S' (blue) blades to cut against the pinchweld or car
body, and NOT against the glass ,
OR
for long reach, turn over the
WK1-S or WK2-S long straight blades to again place the flat side of
the cutting tip against the pinchweld and cut safely underneath the
encapsulation. Refer to
Diagrams P
,
U, V
and
Diagram X(3)
.
Controller arms should be fitted underneath
'R-S'
AND
'VR-S'
blades to support and steer the blade against the pinchweld and
away from encapsulated glass, but also precisely control the depth
of blade penetration. Refer to
Diagram U
and
Diagram V
.
PINCHWELD
GLASS
WK11CW CONTROLLER ARM
UNDER BLADE. WHEEL
STOPS AT ADHESIVE
ENCAPSULATED
MOULDING
SPACE CAN
BE FILLED BY
ADHERING
VELCRO® TABS
TO WHEEL.
ADHESIVE
PANEL
TRIM
FLEXIBLE REVERSE
ORANGE / BLUE
BLADE
Diagram V
2.2.7.2 REMOVAL OPTIONS FOR UNUSABLE / DAMAGED
ENCAPSULATED GLASS
(A)
Use a Standard blade to cut off bottom of encapsulated mould
OR
(B)
Cut away (or cap) moulding using a winged WK6 pinchweld
blade or desired method then use a Powered Cold Knife blade
to cut between moulding and glass.
Also refer to options shown in
Diagram X
.
ENCAPSULATED
MOULDING
DAMAGED GLASS
DAMAGED GLASS
(A)
Cut from inside
with standard blade
and also cut off bottom
of encapsulated mould.
(B)
Pre-cut away (or cap)
moulding then use
Power Cold Knife blade
and
cut from outside
.
Diagram W
2.2.8 Exposed or Bare Edged Glass
Exposed and/or bare edged glass allows many effective and safe
solutions using BTB's range of blades for cutting either against the
glass or against the pinchweld while operating from outside of a
vehicle. See
Diagrams N
,
X
and
Diagram Y
.
ADHESIVE
PINCHWELD
GLASS
ADHESIVE
PINCHWELD
(2)
(1)
(3)
GLASS
‘A’ PILLAR
EXPOSED EDGE GLASS
ADHESIVE
INTERNAL
TRIM
FROM OUTSIDE, CUT WITH FLAT SIDE OF BLADE AGAINST
(a) GLASS OR (b) PANEL / PINCHWELD
EASY ACCESS FOR
POWERED COLD
KNIFE BLADE
CUT FROM INSIDE IF GLASS
EDGE IS TOO CLOSE TO
PINCHWELD OR IF ADHESIVE IS
TOO FAR FROM GLASS EDGE
(b)
a)
b)
FOR ENCAPSULATED
GLASSES USE YELLOW
BLADE (WITH FLAT SIDE
DOWN) TO CUT AGAINST
PINCHWELD
(a)
CUT AGAINST GLASS WITH
REVERSE "Z" BLADE (FLAT SIDE UP)
GLASS
GLASS
INTERNAL
TRIM
PINCHWELD
Diagram X
2.2.9 Cutting from Outside the Vehicle with Standard
Flat Blades Or 'ZR-S' Blades
Using an Orange reverse 'ZR-S' blade or standard flat blade, with flat
side facing the surface you want to cut against, is a good alternative
to using a Powered Cold Knife blade when cutting from outside the
vehicle where the adhesive is hard and / or too wide for a Powered
Cold Knife blade. Refer to
Diagram P, Diagram X(3)
and
Diagram Y
.
ACCESSIBLE GLASS EDGE
WIDE
DIFFICULT
ADHESIVE
REVERSE ZR-S 'R' BLADE HAS
FLAT SIDE OF CUTTING TIP UP
‘A’
PILLAR
PILLAR
TRIM
ORANGE
WK4ZR-S or
WK24ZR-S BLADE
Diagram Y
