What is Silicone sealant ? Our single-component silicone adhesives are RTV-1 (room-temperature vulcanizing) systems that cure with humidity. They serve as a silicone adhesive sealant : a single product that bonds and seals. Available in neutral (alkoxy/oxime) and acetoxy, with varieties from transparent "clear RTV" to black, and in flowable...
✔ One component acid-based curing system.
✔ Self-leveling.
✔ Excellent adhesion on various surfaces
✔ Colorless transparent or Black
✔ Good mechanical properties
✔ Heat resistant
✔ Resistant to weather influences and aging
✔ Permeable to gas and water vapor
✔ Self-levelling
✔ Solvent containing
✔ Excellent adhesion on cured silicone rubber
✔ High-tear grade
✔ Recommended service temperature from -45°C to 180°C
✔ Max. recommended short term peak temperature exposure 200°C
✔ Food grade
✔ One component acid-based curing system.
✔ Self-leveling.
✔ Excellent adhesion on various surfaces
✔ Colorless transparent
✔ Good mechanical properties
✔ Heat resistant
✔ Resistant to weather influences and aging
✔ Permeable to gas and water vapor
✔ Acetoxy-curing RTV-1 silicone
✔Low Shore A hardness
✔ Excellent adhesion without primer on many surfaces
✔ Good heat stability
✔ One component
✔ Immediately ready for use
✔ Also usable for FIPG/ CIPG
✔ready-to-use, one-component system
✔low module
✔excellent primerless adhesion to many substrates
✔no use of organotin catalysts
✔ Flexible at low (-40 °C) and high temperatures (+180 °C)
✔Flowable
✔Low viscosity
✔Solvent-based
✔ Recommended service temperature from -45 °C to +230 °C
✔ max. recommended short term peak temperature exposure 250°C
✔ non-thixotropic
✔ Flowable
✔ Heat resistant
✔ Low viscosity
✔ One-component
✔ Solvent-free
✔ Recommended operating temperature from -45 °C to +180 °C
✔ Neutral curing (Alkoxy), no acid
✔ Sprayable
✔ Good adhesion to many substrates without primer
✔ One component
✔ Solvent free
✔ Self-Leveling
✔ One component acid-based curing system.
✔ Self-leveling.
✔ Excellent adhesion on various surfaces
✔ Colorless transparent or Black
✔ Good mechanical properties
✔ Heat resistant
✔ Resistant to weather influences and aging
✔ Permeable to gas and water vapor
What is Silicone sealant ?
Our single-component silicone adhesivesare RTV-1 (room-temperature vulcanizing) systems that cure with humidity. They serve as a silicone adhesive sealant : a single product that bonds and seals.
Available in neutral (alkoxy/oxime) and acetoxy, with varieties from transparent "clear RTV" to black, and in flowable or thixotropic, paste-like consistencies.
Key Features
1-component: straight from the tube/cartridge; no mixing required
Bonding + sealing: one product for bonding and sealing
Surfaces: metal, glass, ceramics, many plastics* and painted parts
Performance: temperature resistant, elastic, durable
*Check datasheet and primer recommendations; some plastics (PE/PP/PTFE) require pretreatment.
Choosing silicone adhesive: curing, color and processing
ELASTOSIL E41 (also known as elastosil e41 and wacker elastosil e41) is a popular neutral curing RTV-1 for bonding and sealing in general engineering.
Available in various colors and viscosities; see the ELASTOSIL RTV-1 product overview for specifications, primer recommendations, and application tips.
Adhesion to glass, metals, ceramics and many plastics
Durable seal with permanent elasticity
Electronics-friendly in neutral variants (non-corrosive)
Applications of silicone adhesive & silicone glue
Gluing
Glass/metal parts, housings, panels and components
Sealing
Seams, feedthroughs, cabinet covers, IP seals
Automotive/Mechanical Engineering
Vibration-resistant seals, on-site gaskets
Electronics
Non-corrosive seal (neutral) around prints and connectors
Similar searches & alternatives
Are you looking for these terms and are you looking for a suitable alternative within our range? We're happy to advise you.
Loctite Superflex RTV Silicone Adhesive Sealant
A popular market term; similar application area. We offer high-quality RTV-1 silicone adhesives like WACKER ELASTOSIL E41 with comparable performance.
Permatex Black Silicone Adhesive Sealant 81158
Looking for a black option? We recommend a black RTV-1 silicone adhesive from our range based on your substrate and temperature class.
Permatex Clear Silicone Adhesive Sealant
For transparent adhesive/sealant seams, choose a clear RTV silicone adhesive sealant (neutral recommended for electronics/metals).
Silicone Adhesive Sealant – Generic Name
The generic English product name for silicone adhesive. Use our selection guide to find the right curing system and desired viscosity/color.
Frequently Asked Questions (FAQ)
Is there a difference between silicone glue and silicone sealant?
In practice, we use the umbrella term "silicone adhesive sealant": a single product that both bonds and seals. The differences lie primarily in viscosity (flowable vs. pasty) and the curing system (neutral vs. acetic acid).
When should I choose a neutral silicone adhesive instead of an acetic silicone adhesive?
Neutral (alkoxy/oxime) is corrosion-free and widely applicable (glass, metals, electronics). Acetic acid (acetoxy) adheres very well to glass/ceramics but can corrode certain metals.
Does RTV-1 adhere to metal and glass without a primer?
Often, yes, but the highest and most durable adhesion is achieved with thorough cleaning/degreasing and, if necessary, a suitable primer/adhesion promoter. Consult the datasheet.
Getting Started
Compare neutral/acetic acid, transparent/black, and flowable/pasty. For a quick start, we recommend WACKER ELASTOSIL E41 as a versatile RTV-1 silicone adhesive. Contact us for the best match for your substrates and temperature class.
Wacker Elastosil RTV 1 product overview.pdf