DOW CORNING®7091
Adhesive/Sealant
High performance neutral cure silicone adhesive/alant APPLICATIONS
"Designed for applications which demand a strong but flexible bond,such as when bonding materials with differing thermal expansion lass to metal or glass to plastic.
"Unprimed adhesion to commonly ud materials including enamelled and painted steel,aluminum,ceramic and glass as well as to certain plastics ud in engineering applications.
"Ud as a Formed-in-Place Gasket(FIPG)material.
TYPICAL PROPERTIES
Specification writers:The values are not intended for u in preparing specifications. Plea contact your local Dow Corning sales reprentative prior to writing specifications on this product.
CTM*ASTM*Property Unit Value
关于合作的名言
As supplied
Appearance Non-slump paste
Colors Black,white,gray 0364D2452Extrusion rate1g/minute185
0098Skin-over time minutes15
0095MIL-S-8802E Tack-free time2minutes28
Mechanical properties,cured7days in air at23ºC(73ºF)and
50%relative humidity
0099D2240Durometer hardness,Shore A37
0137A D412Tensile strength MPa 2.5
0137A D412Elongation at break%680
0137A D412Tear strength-die B kN/m15
0022D0792Specific gravity at22ºC(72ºF) 1.4
Adhesion cured7days at23ºC(73ºF)and50%relative humidity
100%Cohesive failure is obtained on
metals and glass but also on ABS,
polycarbonate,talc-filled
polypropylene-corona treated,anti-
scratch coated plastic
1.Extrusion rate measured using3.18mm diameter nozzle at0.62MPa.
2.Tack-free time is the time required for the product to develop a non-tacky surface bad on adhesion to a polyethylene film.
*CTM:Corporate Test Method,copies of CTMs are available on request.
ASTM:American Society for Testing and Materials.
HOW TO USE Substrate preparation
All surfaces must be clean and dry. Degrea and wash off any contaminants that could impair adhesion.Suitable solvents include isopropyl alcohol,acetone or methyl ethyl ketone.
Good unprimed adhesion may be obtained on a variety of substrates, including enamelled and painted steel,
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Product Information
FEATURES
"One-component adhesive/alant "Cures at room temperature when expod to moisture in the air
"Alkoxy cure system
"Non-sag,paste consistency
"Easy to apply
"Cures to a tough,flexible rubber "Excellent adhesion to many substrates "Stable and flexible from-55ºC(-67ºF)to +180ºC(+356ºF)
aluminum,ceramic,glass and certain plastics.Substrates to which good adhesion is normally not obtained include PTFE,polyethylene, polypropylene and related materials.
For maximum adhesion,the u of DOW CORNING®1200OS Primer is recommended.After solvent cleaning apply a thin coat of DOW CORNING 1200OS Primer by dipping,brushing or spraying.Allow primer to dry for 15to90minutes at room temperature and a relative humidity of50%or higher.
How to apply
Apply a bead of DOW CORNING 7091Adhesive/Sealant(e Handling Precautions)to one of the prepared surfaces,then quickly cover with the other substrate to be bonded.
On exposure to moisture,the freshly applied material will"skin-over"in about10-15minutes at room temperature and50%relative humidity. Any tooling should be completed before this skin forms.The surface is easily tooled with a spatula.The adhesive/alant will be tack-free in approximately30minu
tes.
Cure time
After skin formation,cure continues inward from the surface.In24hours (at room temperature and50%relative humidity)DOW CORNING7091 Adhesive/Sealant will cure to a depth of about2mm.Very deep ctions, especially when access to atmospheric moisture is restricted,will take longer to cure completely.Cure time is extended at lower humidity levels. Before handling and packaging bonded components,urs are advid to wait a sufficiently long time to ensure that the integrity of the adhesive al is not affected.This will depend on many factors and should be determined by the ur for each specific application.HANDLING PRECAUTIONS
When using solvents avoid contact
with skin and eyes,heat,sparks and
open flames.Always provide adequate
k联赛
ventilation.Obtain and follow handling
precautions from the solvent supplier.
Product safety information required for
safe u is not included.Before昌江河
handling,read product and safety data
sheets and container labels for safe u,
physical and health hazard information.
国庆内容The material safety data sheet is
available on the Dow Corning website
at You can also
obtain a copy from your local
Dow Corning sales reprentative or
Distributor or by calling your local
Dow Corning Global Connection.
USABLE LIFE AND
STORAGE
When stored at or below30ºC(86ºF)in
the original unopened containers,this
product has a usable life of12months
from the date of production.
PACKAGING
This product is available in310ml
cartridges,20liter pails and250kg
drums.
LIMITATIONS
Adhesion may be less successful on
low-energy plastics such as
Polyethylene,Polypropylene and
PTFE.Urs should do preliminary
tests in each specific application to
ensure satisfactory results.
父亲生日送什么This product is neither tested nor
reprented as suitable for medical or
周朝服饰pharmaceutical us.
HEALTH AND
ENVIRONMENTAL
INFORMATION
To support Customers in their product
safety needs,Dow Corning has an
extensive Product Stewardship
organization and a team of Product
Safety and Regulatory Compliance
(PS&RC)specialists available in each
area.
For further information,plea e our
website, or
consult your local Dow Corning
reprentative.
LIMITED WARRANTY
INFORMATION-PLEASE
READ CAREFULLY
The information contained herein is
offered in good faith and is believed to
be accurate.However,becau
conditions and methods of u of our
products are beyond our control,this
information should not be ud in
substitution for customer's tests to
ensure that Dow Corning's products are
手绘插画
safe,effective,and fully satisfactory
for the intended end u.Suggestions
of u shall not be taken as
inducements to infringe any patent.
Dow Corning's sole warranty is that the
product will meet the Dow Corning
sales specifications in effect at the time
of shipment.
Your exclusive remedy for breach of
such warranty is limited to refund of
purcha price or replacement of any
product shown to be other than as
warranted.
DOW CORNING SPECIFICALLY
DISCLAIMS ANY OTHER
EXPRESS OR IMPLIED
WARRANTY OF FITNESS FOR A
彩泥作品图片大全PARTICULAR PURPOSE OR
MERCHANTABILITY.
DOW CORNING DISCLAIMS
LIABILITY FOR ANY
INCIDENTAL OR
CONSEQUENTIAL DAMAGES.
WE HELP YOU INVENT THE
FUTURE."
DOW CORNING7091Adhesive/Sealant WE HELP YOU INVENT THE FUTURE.is a trademark of Dow Corning Corporation. 214/05/2002DOW CORNING is a registered trademark of Dow Corning Corporation. 10-1116F-01DC3379©1998-2002Dow Corning Corporation.All rights rerved.
