Morrison provides technical support and consulting and distributes Mold
Flex-Clean 2000 is an elastomeric
soft flow material for compression style cleaning of all transfer and
compression molds regardless of cavity wall thickness.
Flex-Clean 2000 Product Bulletin
- Designed to
effectively remove mold stain and wax buildup from chrome-plated encapsulation
tooling used in the electronics industry.
removes long-term mold build-up, without removing the mold from the
- The soft
physical properties of Flex-Clean 2000 permit the compression cleaning
of intricate, thin wall molds.
cleaning with Flex-Clean 2000 is more effective than transfer cleaning
with other compounds because it achieves direct contact with all gate and vent
- Improves yields
by reducing or eliminating pin holes and knit lines, which often result from
- Eliminates the
cost of lead-frame inserts normally required in transfer cleaning.
2000 has been proved to be most effective when used routinely and
frequently as a preventative maintenance procedure, rather than as a "fix" in a
2000 is landfill disposable*.
* Cured scrap is
inert, but it is recommended that individual landfills be consulted with regard
to compliance with local regulations.
||Flex-Clean 2000 Material Specifications
||All are listed in: TOSCA, DSL, EINECS, ENCS AICS, ECL
are nominal 2"
months @ 70º F
||Prolonged exposure to 100º F storage temperature will cause
precure which will reduce the effectiveness of the compound.
Moisture exposure - Flex-Clean 2000 may eventually develop pale yellow surface
crystals due to prolonged moisture exposure. This will not dramatically affect
its cleaning capability.
Flex-Clean 2000 Application
Please call or e-mail R.P. Morrison for this
Tel. (401) 295-3100 , E-mail
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Melamine Short-Flow Mold Cleaner
is used for compression cleaning of mold cavities with substantial wall
thickness. Perform size is 2" x 2" x ¼". It is a short flow
compression-grade alpha cellulose filled melamine formaldehyde mold cleaning
material. Because of its short flow, this melamine compression grade mold
cleaner is generally more effective in removing mold staining than transfer
grade cleaning melamines
Melamine Product Bulletin
- Supplied in 2" x
2" preforms weighing 28 grams; The preform contains an easy-break center
V-groove, so that it can be broken to form 1" x 2" pieces for use in smaller
- Because it is an
extremely stiff flow material, approximately 1 to 5 inches at 175º C,
clamp pressure should be reduced on the press, and the soft-close feature
should be used on the platens if available
temperatures as low as 300º F can be used. Cure times may vary from 2 to 5
minutes. It is recommended that the cured melamine be removed from the cleaned
areas immediately to minimize sticking
- Because short
flow melamine removes residual release so thoroughly, the mold surface is often
"dry". It is therefore recommended that a light application of external mold
release be applied to the mold (particularly the KO pins) surface before
molding is resumed.
- Depending on the
frequency of cleaning, more than one cleaning shot is generally recommended. It
is best to continue the cleaning procedure until all traces of staining or
compound contamination have disappeared from the white melamine. Supplied in 30
pound plastic pails.
||Short Flow Melamine Material Specifications
months at 70º F
||NOTE: Please contact R.P. Morrison for applications where a long
flow material is more appropriate.
Call (401) 295-3100 or E-mail
Procedure for Short Flow Melamine
- Can be molded at
temperatures as low as 300º F and at pressures as low as 200
- To reduce the
possibility of damage to any thin wall sections or sharp corners in the mold,
it is recommended that clamp pressure be reduced to a minimum, but still
adequate pressure to fill the mold cavities.
- Make sure that
an adequate amount of melamine is placed in the mold so that when it is closed
both the upper and lower sections of the mold cavities are filled.
- Place melamine
squares adjacent to each other and over the cavity and runner area of the lower
half of the mold. To reduce waste, the preforms may be broken in half as long
as the area to be cleaned is covered by the preforms.
- If the pot and
face of the plunger have exhibited staining and sticking, it may be advisable
to place an appropriate amount of melamine in the cull area of the
- If your press is
equipped with a "slow close" option, it is helpful to use it to optimize the
flow of the cleaning compound.
- With the press
in manual mode, close the mold halves together using reduced clamping pressure
and normal molding temperatures. Set the cure cycle for five minutes initially.
This time may be varied up or down depending on the cleanliness of the mold,
and cross-sectional area of the cavities.
- Open the mold
and remove all of the cured compound, being careful to thoroughly clean any
relief areas in both halves of the mold to prevent damage to locating or
- This process may
have to be repeated a number of times until the melamine contains little or no
discoloration from epoxy stains or mold release.
- If this cleaning
procedure is required more than once a shift, consult your epoxy
- Since this
cleaning compound removes most of residual release agents in the tools, it is
recommended that the mold be "conditioned" with applications of release
(Frekote HMT is preferred) before epoxy molding is resumed.
- Exhaust fumes
from the melamine should be drawn away from the operator through an exhaust
vent at the rear of the press.
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Abrasive Blast Media in a variety of particle
sizes and hardnesses.
Blast equipment is required for off-line cleaning
Melamine, Urea, Polyester, and Acrylic
Liquid - Citrus Mold Cleaning Materials are
slower acting for less severe mold stains where hand application is possible.
Good for either on-line or off-line cleaning.
Liquid - Solvents are
for more aggressive off-line cleaning.
Long term soak is
E-mail or call R.P.
Morrison Company for the Right recommendation!
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· Fax: 401.295.3102