Brochure

ManualsBrandsDow Corning ManualsChemicalsSilicon Adhesive / Sealant, 90 ml, Transparent

liquid or vapor solvent or fuel that may occur in an applica-

tion. These adhesives are not suitable for continuous solvent

or fuel exposure; however, Dow Corning

4-8012 Sealant &

Adhesive is specially formulated for improved resistance.

Testing should be done to conrm performance of the adhe-

sives under these conditions.

STORAGE AND SHELF LIFE

Shelf life is indicated by the “Use Before” date found on the

product label.

For best results, Dow Corning RTV adhesives should be

stored at or below 25°C (77°F). Special precautions must

be taken to prevent moisture from contacting these materi-

als. Containers should be kept tightly closed with head or

air space minimized. Partially lled containers should be

purged with dry air or other gases, such as nitrogen.

Dow Corning heat-cure adhesives should also be stored at or

below 25°C (77°C). Containers should be kept tightly closed

and kept in cold storage at all times to extend shelf life.

Automated airless dispense equipment can be used to reduce

or avoid the need to de-air. If de-airing is required to reduce

voids in the cured elastomer, consider a vacuum de-air

schedule of >28 inches Hg for 10 minutes or until excessive

bubbling subsides.

REVERSION

When two-part condensation curing materials with

organotin catalysts, such as Dow Corning

Q3-6093 RTV

Adhesive, are cured in connement (especially in deep sec-

tion) and are later subjected to high heat conditions, they

can potentially revert from a cured elastomer to a ﬂowable

polymer. Although this condition is unusual, parts using

two-part condensation cure adhesives should be thoroughly

tested in accelerated temperature conditions for this poten-

tial limitation.

SOLVENT EXPOSURE

The silicone adhesives discussed in this brochure are in-

tended only to survive splash or intermittent exposures to

PRIMER SELECTION GUIDE

Detailed information is available in the Primers data sheet, form number 10-909, available from the Dow Corning website (www.dowcorn-

ing.com/electronics) or from Dow Corning Customer Service. Specication Writers: Please contact your local Dow Corning sales ofce or

your Global Dow Corning Connection before writing specications on these products.

Dow Corning

brand Primer or

Adhesion Promoter Special Properties Substrates Compatible Silicones

Dow Corning

P5200

Adhesion Promoter

- Clear

The most versatile of all Dow Corning primers for the widest

range of silicones and electronics applications. This clear primer

is similar to Dow Corning

1200 OS Primer but uses a slightly

different adhesion promoter combination. It enhances the adhe-

sion of many RTV and heat-cure silicones to a wide variety of

surfaces. Not registered for use in European Union.

Wide variety of surfaces

including FR-4, ceramics,

and many metals and

plastics

All

Dow Corning

1200

OS Primer Clear

The most versatile of all Dow Corning primers for the widest

range of silicone types and electronics applications. This clear

primer is supplied in a low-VOC diluent for lower environmental

impact and exhibits low odor for convenient handling. It enhances

the adhesion of many RTV and heat-cure silicones to a variety

of surfaces. This primer is very similar to Dow Corning P5200

Adhesion Promoter and is also registered for use in the European

Union.

Wide variety of surfaces

including FR-4, ceramics,

and many metals and

plastics

All

Dow Corning

P5204

Adhesion Promoter

This clear primer is supplied in a low-VOC diluent for lower

environmental impact and exhibits low odor for convenient use.

It is specially formulated to enhance adhesion of many moisture-

cure RTV silicones to a wide variety of surfaces.

Wide variety of surfaces

including FR-4, ceramics,

and metals. Not recom-

mended for plastics

All one-part alcohol cure and

two-part condensation cure

except Dow Corning

93-076

Dow Corning

1201

RTV Prime Coat

This transparent primer with yellow tint is supplied in a mixture

of acetone and toluene solvents. It is specically formulated to

enhance the adhesion of Dow Corning

3110 RTV and 3120

RTV silicones to a wide variety of surfaces, especially FR-4 and

metals.

Wide variety of surfaces,

especially FR-4 and metals

Dow Corning

3110, 3112,

3120

Dow Corning

1205

Prime Coat

Specially formulated to increase adhesion of a wide range of

silicones to plastics including more difcult types such as acrylic

and polycarbonate. This clear primer is supplied in a mixture of

organic solvents.

Most plastics, ceramics,

and composites

Not recommended for use with

addition-cure silicones such

as Dow Corning

170, 184,

186, etc.

Dow Corning

92-023 Primer

Specially formulated for use with addition-cure silicones to

mitigate surface cure poisoning. This clear primer is diluted in

heptane solvent and enhances the adhesion of many addition-cure

silicones to a wide variety of surfaces.

FR-4, most metals and

ceramics

Non-pigmented two-part

addition-cure silicones

Dow Corning

P5204 Adhesion Promoter not available in Europe.