---
product_id: 20174839
title: "Prosoco R-Guard Joint and Seam Filler"
brand: "prosoco"
price: "C$5486"
currency: NIO
in_stock: true
url: https://www.desertcart.ni/products/20174839-prosoco-r-guard-joint-and-seam-filler
store_origin: NI
region: Nicaragua
---

# Water-resistant STPE formula 4-hour full cure time 20 fl oz precision paste Prosoco R-Guard Joint and Seam Filler

**Brand:** prosoco
**Price:** C$5486
**Availability:** ✅ In Stock

## Summary

> 🧱 Seal smart, build strong — don’t let gaps hold you back!

## Quick Answers

- **What is this?** Prosoco R-Guard Joint and Seam Filler by prosoco
- **How much does it cost?** C$5486 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/20174839-prosoco-r-guard-joint-and-seam-filler)

## Best For

- prosoco enthusiasts

## Why This Product

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

## Key Features

- • **Hybrid Power:** Combines silicone & polyurethane for unmatched flexibility and durability
- • **Seamless Wall Prep:** Prepares joints & cracks flawlessly for superior barrier adhesion
- • **Fast & Easy Application:** Gun-grade paste spreads and tools effortlessly for professional finish
- • **Ultimate Weather Defense:** Water-resistant formula protects your walls from moisture intrusion
- • **Fiber-Reinforced Strength:** Built-in fibers ensure long-lasting crack bridging and support

## Overview

Prosoco R-Guard Joint and Seam Filler is a 20-ounce, fiber-reinforced STPE paste designed to prep and seal open joints, seams, and cracks before applying air and water barriers. With a quick 4-hour cure time and a hybrid silicone-polyurethane formula, it delivers flexible, durable, and water-resistant protection for new or existing wall assemblies.

## Description

Full description not available

## Features

- Utilize Joint & Seam Filler to prepare open joints, seams and cracks before installing R-GUARD FastFlash; any R-GUARD Primary Air & Water-Resistive Barrier; or other waterproofing and air barrier components in new or existing wall assemblies.
- Joint & Seam Filler is a high modulus, gun-grade crack and joint filler, adhesive and detailing compound that combines the best of silicone and polyurethane properties.
- This single-component, fiber-reinforced, Silyl-Terminated-Poly-Ether (STPE) is easy to gun, spread and tool.
- Use Joint & Seam Filler to fill openings and create transitions where flexible reinforcement is required to bridge gaps and provide continuous support of fluid-applied flashing membranes, waterproofing or air barrier components.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Prosoco |
| Liquid Volume | 20 Fluid Ounces |
| Full Cure Time | 4 Hours |
| Item Form | Paste |
| Surface Recommendation | Walls |
| Water Resistance Level | Water Resistant |
| Number of Items | 4 |
| Manufacturer | Prosoco |
| UPC | 653429020212 |
| Unit Count | 20 Ounce |
| Material | Silyl-Terminated-Poly-Ether (STPE) |
| Product Dimensions | 12 x 2 x 2 inches |
| Item Weight | 1.9 pounds |
| ASIN | B00OBUXCJ6 |
| Item model number | 5824052562 |
| Is Discontinued By Manufacturer | No |
| Date First Available | October 9, 2014 |

## Product Details

- **Brand:** Prosoco
- **Liquid Volume:** 20 Fluid Ounces
- **Full Cure Time:** 4 Hours
- **Item Form:** Paste
- **Surface Recommendation:** Walls

## Images

![Prosoco R-Guard Joint and Seam Filler - Image 1](https://m.media-amazon.com/images/I/51cc2sLofaL.jpg)

## Available Options

This product comes in different **Unit Count, Style** options.

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**Shop now:** [https://www.desertcart.ni/products/20174839-prosoco-r-guard-joint-and-seam-filler](https://www.desertcart.ni/products/20174839-prosoco-r-guard-joint-and-seam-filler)

---

*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-01-31*