MG Chemicals RTV615-1G Clear RTV Silicone Potting Compound, 1 Gallon Pail Kit
MG Chemicals RTV615-1G Clear RTV Silicone Potting Compound, 1 Gallon Pail Kit
MG Chemicals RTV615-1G is a two-component, optically clear silicone potting compound supplied as a 1-gallon pail kit with matched curing agent. Its pourable consistency helps fill spaces around electronic components, then cures to a high-strength silicone rubber. Choose it for applications where component visibility and elastomeric protection are important, including electronics encapsulation and evaluated optical or casting applications.
Availability: RTV products are not stocked. Please call for current pricing and lead times before scheduling production.
Key Features
- Optical clarity supports component identification after potting.
- Matched base and curing agent use a 10:1 ratio by weight.
- Low-viscosity, pourable liquid for filling around components.
- Room-temperature cure; manufacturer-approved elevated-temperature schedules can accelerate curing.
- Cured silicone rubber provides protection against shock, vibration and environmental exposure, subject to application qualification.
- Solvent-free composition without solvent odor.
- Release properties support casting applications; use an appropriate primer where adhesion is required.
Technical Specifications
| Property | Specification |
|---|---|
| Part number | RTV615-1G |
| Package | 1-gallon pail kit with matched curing agent |
| Chemistry | Two-component RTV silicone |
| Appearance | Clear, colorless liquid; optically clear cured rubber |
| Base-to-curing-agent ratio | 10:1 by weight |
| Nominal viscosity | Approximately 4,000 cP, as described in the product information |
| Cure methods | Room temperature or manufacturer-specified elevated-temperature cure |
| Handling cure at 25°C / 77°F | Approximately 24 hours |
| Optimum-property cure at room temperature | Approximately 6–7 days |
| Example elevated-temperature cure | Approximately 4 hours at 65°C / 149°F or 1 hour at 100°C / 212°F |
| Cured material | High-strength silicone rubber |
| Adhesion planning | Evaluate an appropriate primer where bonding to the substrate is required |
Cure times are approximate manufacturer guidance and depend on assembly mass and the time needed to reach the specified temperature. Handling cure is not the same as full-property cure. Validate the selected schedule, substrate compatibility, adhesion and assembly performance before production.
Best Uses / Applications
- Potting electronic assemblies where components must remain visually identifiable.
- Encapsulation to help protect components against shock, vibration, moisture, dust and other environmental hazards.
- Evaluation for solar-cell potting and other optical applications requiring clear encapsulation.
- Silicone casting where clarity and release behavior are useful.
- Production processes that can use accurately weighed two-part material and controlled cure schedules.
Selection Comparison
| Consideration | RTV615-1G | RTV12A-1G / RTV12 system |
|---|---|---|
| Package identification | Matched kit with curing agent | RTV12A base listing; RTV12C curing agent required |
| Mix ratio | 10:1 by weight | 20:1 by weight with RTV12C |
| Cured character | High-strength silicone rubber | Soft, pliable silicone rubber |
| Visibility | Optically clear | Clear, supporting component identification |
| Adhesion | Evaluate appropriate primer when adhesion is required | Designed for primerless adhesion to many substrates; test the actual surface |
These are different silicone systems. Do not interchange curing agents or mixing ratios.
Mixing & Cure Planning
Weigh the matched components at 10 parts base to 1 part curing agent and follow the manufacturer’s preparation, mixing and air-removal instructions. Do not change the ratio to adjust cure speed unless expressly permitted by the applicable technical documentation. Select a cure schedule compatible with the complete assembly, including temperature-sensitive components.
Frequently Asked Questions
Does RTV615-1G include curing agent?
Yes. The product is described as a matched pail kit supplied with curing agent, unlike a base-only listing.
Is the 10:1 ratio measured by volume or weight?
By weight. Use 10 parts base to 1 part matched curing agent and follow the manufacturer’s instructions.
How long does it take to cure at room temperature?
At 25°C / 77°F, approximately 24 hours permits handling. Optimum properties require approximately 6–7 days at room temperature or an appropriate elevated-temperature cure.
Can I accelerate curing with heat?
Yes, using a manufacturer-specified cure schedule. Example guidance is approximately 4 hours at 65°C or 1 hour at 100°C. Assembly mass and heat-up time affect the actual process, and all components must tolerate the selected temperature.
Will I be able to see the components after encapsulation?
RTV615 is optically clear, making it useful where component identification is desirable. Evaluate optical performance in your actual assembly and thickness.
Does it bond without a primer?
Do not assume primerless adhesion. RTV615 has useful release properties; evaluate the appropriate primer and surface preparation where bonding is required.
Is RTV615 the same as RTV12?
No. RTV615 is described as a high-strength silicone rubber system with a 10:1 weight ratio. RTV12 forms a soft, pliable rubber using RTV12A and RTV12C at 20:1 by weight. Choose based on the application and the relevant technical data.
Is this kit stocked?
RTV products are not stocked. Contact MTE Solutions for current pricing and lead times.
Related Products & Resources
Compare encapsulating and potting compounds, browse more MG Chemicals products, or visit our Adhesives, Dispensing & UV Cure Systems resource hub for related selection guidance.
