---
product_id: 658293201
title: "Dowsil 3145 RTV 305ml 10.3oz Clear Adhesive Sealant Mil-A-46146 Electrical Battery Board Housing Moisture Sealing Non Flow Primerless Adhesion High Strength Group II/III"
brand: "sanyi"
price: "37321 som"
currency: KGS
in_stock: true
category: "Sanyi"
url: https://www.desertcart.kg/products/658293201-dowsil-3145-rtv-305ml-10-3oz-clear-adhesive-sealant-mil
store_origin: KG
region: Kyrgyzstan
---

# 940 psi tensile strength Water resistant & non-flowing Thermal stability -45°C to 200°C Dowsil 3145 RTV 305ml 10.3oz Clear Adhesive Sealant Mil-A-46146 Electrical Battery Board Housing Moisture Sealing Non Flow Primerless Adhesion High Strength Group II/III

**Brand:** sanyi
**Price:** 37321 som
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal with confidence, perform with power.

## Quick Answers

- **What is this?** Dowsil 3145 RTV 305ml 10.3oz Clear Adhesive Sealant Mil-A-46146 Electrical Battery Board Housing Moisture Sealing Non Flow Primerless Adhesion High Strength Group II/III by sanyi
- **How much does it cost?** 37321 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/658293201-dowsil-3145-rtv-305ml-10-3oz-clear-adhesive-sealant-mil)

## Best For

- sanyi enthusiasts

## Why This Product

- Trusted sanyi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Thermal Warrior:** Operates flawlessly from -45°C to 200°C, ensuring durability in extreme conditions.
- • **Precision Sealant:** Non-flowing, non-slump formula guarantees clean, mess-free sealing on delicate electrical boards and housings.
- • **Effortless Application:** One-part, primerless adhesion with room temperature cure means no mixing or ovens—speed up your workflow.
- • **Military-Grade Reliability:** Meets MIL-A-46146 Group II/III specs, perfect for high-stakes electrical and battery pack assemblies.
- • **Unmatched Strength & Flexibility:** With 940 psi tensile strength and 660% elongation, it holds your components tight without cracking.

## Overview

DOWSIL 3145 RTV is a clear, one-part silicone adhesive sealant designed for high-strength, moisture-resistant sealing in electrical and battery applications. It offers exceptional tensile strength (940 psi), extreme thermal stability (-45°C to 200°C), and primerless adhesion with a non-flowing, non-slump formula. Certified to MIL-A-46146 standards, it cures at room temperature in 48 hours, making it ideal for professional-grade assembly and protection of printed wiring boards and housings.

## Description

DOWSIL 3145 RTV Sealant Clear or Gray Available MIL-A-46146 Dow 3145 Adhesive Sealant 305ml one Bottle One-part, moisture RTV, non-flow, high strength, UL and Mil Spec. Uses Sealing openings in modules and housings. Adding mechanical stability to individual components. Assembly of components on PWBs. Sealing in and around wired and electrical leads. Temperature Range: -45 °C ~ 200 °C Benefits Non-flowing High tensile strength and elongation Enhanced thermal stability MIL-A-46146 Group II/III, TY I No mixing required Room temperature cure, no ovens required Faster in-line processing with optional heat acceleration Can be considered for uses with Mil Spec requirements Application Benefits Non-Slump Primerless Adhesion Use: Battery Pack, Boards and Assemblies, Components, Housings Water Resistant Certifications & Standards Regulatory Approvals: MIL Spec Product Use and Formulating Cure Characteristics: Room Temperature Long Working Time > 10 min Cure Type: Alkoxy Cure, Condensation Cure, Methoxy Cure Number of Parts: 1 part Room Temperature Cure: 48 Hours Tack-Free Time-50% RH: 55 Minutes Typical Properties Adhesion to: Glass, Nylon 6/6 Color: Clear, Grey Dielectric Constant at 100 Hz: 2.83 Dielectric Constant at 100 kHz: 2.83 Dielectric Strength: 500 volts per mil v/mil Dissipation Factor at 100 Hz: <0.001 Durometer - Shore A: 45 Elongation: 660% Linear CTE: 370 µm/m/Deg C Nonflowable: Yes Shelf Life: 360 Days Specific Gravity: 1.1 @ 25°C Tensile Strength: 940 psi Volume Resistivity: 4.4e+014 Ω·cm

## Features

- DOWSIL 3145 RTV, 305ml 10.3oz one Bottle. Clear. One-part, moisture RTV, non-flow, high strength, Adhesive Sealant. Sealing, Assembly of components on PWBs, Electrical use
- Color: Clear. Dielectric Constant at 100 Hz: 2.83. Dielectric Strength: 500 volts per mil v/mil. Dissipation Factor at 100 Hz: < 0.001. Durometer - Shore A: 45. Elongation: 660% Linear CTE: 370 µm/m/Deg C. Specific Gravity: 1.1 @ 25°C. Tensile Strength: 940 psi. Volume Resistivity: 4.4e+014 Ω·cm.
- Sealing. Battery Pack, Boards and Assemblies, Components, Housings. Electrical Use. PWBs
- Non-flowing. High tensile strength and elongation. Enhanced thermal stability. Water Resistant. Non-Slump. Primerless Adhesion.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DHGTZR7D |
| Best Sellers Rank | #255,552 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #414 in Silicone Adhesives |
| Brand | SANYI |
| Color | Clear |
| Date First Available | September 19, 2024 |
| Full Cure Time | 48 Hours |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Volume | 305 Milliliters |
| Item Weight | 14 ounces |
| Item model number | 3ab30cdb-fa2c-4bc4-9396-353a04202a49 |
| Manufacturer | Dowsil |
| Material | Silicone |
| Number of Pieces | 1 |
| Package Dimensions | 11.81 x 3.15 x 3.15 inches |
| Package Information | Bottle |
| Special Feature | Heat Resistant, High tensile strength and elongation, Non-flowing, Room temperature cure, Strong |
| Tensile Strength | 940 Pounds Per Square Inch |
| Unit Count | 10.3 Ounce |
| Viscosity | High Viscosity |
| Viscosity Level | High |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** SANYI
- **Color:** Clear
- **Item Form:** Paste
- **Material:** Silicone
- **Special Feature:** Heat Resistant, High tensile strength and elongation, Non-flowing, Room temperature cure, Strong

## Images

![Dowsil 3145 RTV 305ml 10.3oz Clear Adhesive Sealant Mil-A-46146 Electrical Battery Board Housing Moisture Sealing Non Flow Primerless Adhesion High Strength Group II/III - Image 1](https://m.media-amazon.com/images/I/61lQLvdLZ0L.jpg)
![Dowsil 3145 RTV 305ml 10.3oz Clear Adhesive Sealant Mil-A-46146 Electrical Battery Board Housing Moisture Sealing Non Flow Primerless Adhesion High Strength Group II/III - Image 2](https://m.media-amazon.com/images/I/61cYMZnoK0L.jpg)
![Dowsil 3145 RTV 305ml 10.3oz Clear Adhesive Sealant Mil-A-46146 Electrical Battery Board Housing Moisture Sealing Non Flow Primerless Adhesion High Strength Group II/III - Image 3](https://m.media-amazon.com/images/I/61UA9K4qvVL.jpg)
![Dowsil 3145 RTV 305ml 10.3oz Clear Adhesive Sealant Mil-A-46146 Electrical Battery Board Housing Moisture Sealing Non Flow Primerless Adhesion High Strength Group II/III - Image 4](https://m.media-amazon.com/images/I/61He-fZorOL.jpg)
![Dowsil 3145 RTV 305ml 10.3oz Clear Adhesive Sealant Mil-A-46146 Electrical Battery Board Housing Moisture Sealing Non Flow Primerless Adhesion High Strength Group II/III - Image 5](https://m.media-amazon.com/images/I/61qZSimVtRL.jpg)

## Frequently Bought Together

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-19*