SILISIL RTV PAD-Flex 12

SILISIL ·

SILISIL RTV PAD-Flex 12 is a room temperature vulcanizing 2-component silicone of the Pad Printingseries (Addition (Platinum), RTV-2) — Soft pad printing silicone Shore A 12, blue — for sensitive substrates and excellent color transfer.

The mixture is prepared in a 1:1 ratio by weight . Pot life at 23 °C is approximately 20 minutes, demolding after approximately 90 minutes, and complete curing after 24 hours. Temperature resistant from -40 °C to +200 °C.

Key property

Soft printing pad (Shore A 12) with elongation at break 550% — gentle enough for sensitive surfaces, high ink transfer for detailed printing on glass, glaze and coated substrates.

SILISIL RTV PAD-Flex 12 in figures

A 12

Shore Hardness

3'500

mPa·s viscosity

20 min

Pot life @23 °C

550 %

Elongation at break

What distinguishes SILISIL RTV PAD-Flex 12

Very soft (Shore A 12) for sensitive substrates

Very soft tampon (Shore A 12) — gentle on sensitive substrates such as glass, paint and coatings.

Very high elongation at break 550%

Very high elasticity — removes aggressive undercuts without tearing.

Excellent ink transfer

Excellent ink release — clean ink transfer from the cliché to the workpiece.

Low viscosity 3,500 mPa·s

Low mixed viscosity — flows into finest structures without air entrapment, vacuum degassing optional.

Mixing ratio 1:1 by weight

Simple 1:1 ratio — hand-mixable without a precision scale, ideal for workshops and hobbyists.

Tear resistance 8.6 N/mm

Tear resistance for moderate loads — suitable for small series and detailed work.

What is SILISIL RTV PAD-Flex 12 used for?

Pad printing on sensitive surfaces

Printing on glass, lacquered metal, ceramic glaze and coated plastics without damaging the surface.

High-resolution detail printing

Tiny fonts, logos and symbols with the finest detail reproduction — promotional items and consumer goods.

Printing on curved components

Soft tampons conform to complex geometries — bottles, cups, domes and round cases.

Jewelry and watch marking

Precise printing of small, high-quality components with minimal mechanical pressure.

Optical and electronic components

Gentle printing of lenses, displays, touch panels and LED housings.

Medical devices and packaging

Ink transfer to syringes, tablet blisters, inhaler components — gentle and precise.

Processing

Prepare the original

Clean, dry, and dust-free surface at 23 °C — cooler environments significantly extend pot life and curing time.

Mix components

Stir base and catalyst thoroughly before use. Weigh out 1:1 by weight. Mix in thoroughly, including container walls and bottom.

Vacuum degassing

For a pore-free mold, briefly vent under vacuum.

Processing

Pour in a thin stream from a height of approximately 30 cm — minimizing air bubbles. For modeling clay, press directly onto the model.

Vulcanize and demold

At 23 °C, demolding is possible after approximately 90 minutes, with complete hardening after 24 hours.

Data Sheets & Safety Data Sheet

Complete TDS and SDS in DE, EN, FR — view or download directly.

To the documents →

Important Notes

Avoid crosslinking inhibitors

Addition system (platinum) — sensitive to sulfur, amine, tin, and phosphorus compounds. Avoid contact with latex gloves and PVC plasticizers.

Storage and Shelf Life

Shelf life of at least 12 months in unopened original container when stored in a dry, cool place (10–25 °C). Consult the SDS before opening.

Available containers

1 kg + 1 kg, 5 kg + 5 kg. Other container sizes available on request.

Compatibility

Compatible with polyurethane, epoxy, and polyester casting resins. For aggressive resins, apply a release agent.

Recommended accessories

SILISIL Silicone Remover

Cleaning agent for silicone residues on tools, models, and work surfaces — gentle and effective.

To the product →

Which silicone for which application?

SILISIL RTV PAD-Flex 12 in direct comparison with related products in our range (PP — Pad Printing (pad printing)).

	PAD-Flex 12 Current Product	PAD-AntiStatic 12 →	PAD-Soft 00 →	PAD-Dura 30 →
Shore hardness A	12	25	00 40	32
Mixed viscosity	3'500	3'000	1'500	6'000
Color	Blue	Grey	Translucent	Brownish Red
Pot life @23 °C	20	45	6	20
Mixing ratio	1:1	1:1	1:1	1:1

Topics & Application Fields

Key terms related to this product. Also useful for our search and filters.

Mold making SILISIL silicone RTV-2 Swiss bearing Addition Platinum Prototyping Shore A 12 Swiss brand 2K Prototyping Professional range Review 2026

Technical data for SILISIL RTV PAD-Flex 12

All 18 product information 4 Physical properties 3 Electrical properties 1 Curing values 3 Product approvals 3 Mechanical properties 4

Product Information
Brand	SILISIL
Curing type	Addition (Platinum)
Container	25 kg + 25 kg
Container	1 kg + 1 kg, 5 kg + 5 kg, 10 kg + 10 kg, 25 kg + 25 kg

Physical Properties
Cured Color	Blue
Self-leveling	Yes
Density (g/cm³)	1.1

Electrical Properties
Electrical Insulation	Yes

Curing values
Pot life (min)	20
Demolding time (min)	90
Full cure (h)	24

Product Approvals
Food contact	No
Medical grade	No
Certificates	RoHS, REACH

Mechanical properties
Shore hardness A (cured)	A 12
Tensile strength (MPa)	3
Elongation at break (%)	550
Tear strength (N/mm)	8.6

Please refer to the technical data sheet (TDS) in the "Documents" tab for binding values.

Documents and data sheets

Click on a document for the preview or the download icon for direct download.

Technical Data Sheets (TDS) 3

SILISIL RTV PP-Flex 12 - Technical Data Sheet DE.pdf

149 KB

SILISIL RTV PP-Flex 12 - Technical Data Sheet EN.pdf

150 KB

SILISIL RTV PP-Flex 12 - Fiche Technique FR.pdf

154 KB

Frequently asked questions about SILISIL RTV PAD-Flex 12

Practical application and design questions — answered by SILITECH.

What is PAD-Flex 12 suitable for?

SILISIL RTV PAD-Flex 12 is a 2K silicone from the PAD—Pad Printing (pad printing) series (Shore A 12, blue). This soft pad printing silicone, Shore A 12, blue, is suitable for sensitive substrates and offers excellent ink transfer, making it ideal for pad printing on delicate surfaces and related applications.

What are the pot life and demolding time of PAD-Flex 12?

At 23 °C, the pot life is approximately 20 minutes and the demolding time approximately 90 minutes. Complete curing takes 24 hours.

What type of network is PAD-Flex 12?

SILISIL RTV PP-Flex 12 is an addition (platinum) system. Addition system (platinum) — sensitive to sulfur, amine, tin, and phosphorus compounds. Avoid contact with latex gloves and PVC plasticizers.

What mixing ratio is used for PAD-Flex 12?

SILISIL RTV PP-Flex 12 is mixed in a 1:1 ratio by weight (base to catalyst). Homogenize both components separately before mixing, then thoroughly incorporate them – including the container walls and bottom.

What Shore hardness and mechanical properties does PAD-Flex 12 have?

SILISIL RTV PP-Flex 12 achieves a Shore A hardness of 12 (ASTM D 2240), a tensile strength of 3 N/mm² (ASTM D 412), an elongation at break of approximately 550% and a tensile strength of 8.6 N/mm (ASTM D 624).

Your question not covered?

Our technical team provides personal advice on material selection, processing questions, and individual requirements. Fast and competent.

Submit inquiry Request sample

Product Specifications

Product Information
Container	1 kg + 1 kg or 5 kg + 5 kg or 10 kg + 10 kg or 25 kg + 25 kg
Brand	SILISIL
Curing type	Addition (Platinum)
Container	25 kg + 25 kg

Physical Properties
Cured Color	Blue
Self-leveling	Yes
Density (g/cm³)	1.1

Electrical Properties
Electrical Insulation	Yes

Curing values
Pot life (min)	20
Demolding time (min)	90
Full cure (h)	24

Product Approvals
Certificates	RoHS or REACH
Food contact	No
Medical grade	No

Mechanical properties
Shore hardness A (cured)	A 12
Tensile strength (MPa)	3
Elongation at break (%)	550
Tear strength (N/mm)	8.6

Keywords
Keywords	Mold making SILISIL silicone RTV-2 Swiss bearing Addition Platinum Prototyping Shore A 12 Swiss brand 2K Prototyping Professional

Documents and data sheets

Safety Data Sheets (SDS) and Technical Data Sheets (TDS) for download:

Silicones

Adhesives & sealants

Resins & potting

Lubricants

Technical Sprays

Surface Treatment

Construction chemicals

Dosing & mixing technology

SILISIL RTV PAD-Flex 12

Price on request

Documents

Shipping & Delivery

Product data

What distinguishes SILISIL RTV PAD-Flex 12

What is SILISIL RTV PAD-Flex 12 used for?

Processing

Important Notes

Recommended accessories

Which silicone for which application?

Technical data for SILISIL RTV PAD-Flex 12

Documents and data sheets

Technical Data Sheets (TDS) 3

Frequently asked questions about SILISIL RTV PAD-Flex 12

Your question not covered?

Product Specifications

Documents and data sheets