---
product_id: 52471805
title: "Everbuild – Everflex – 115 GP Building Mastic – For Joint Pointing and Sealing – Internal and External Use – Brown – 285ml"
brand: "everbuild"
price: "NT$595"
currency: TWD
in_stock: true
url: https://www.desertcart.tw/products/52471805-everbuild-everflex-115-gp-building-mastic-for-joint-pointing-sealing
store_origin: TW
region: Taiwan
---

# Overpaintable on multiple surfaces Weatherproof & semi-dry seal 115 GP high solids formula Everbuild – Everflex – 115 GP Building Mastic – For Joint Pointing and Sealing – Internal and External Use – Brown – 285ml

**Brand:** everbuild
**Price:** NT$595
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal smart, seal strong – the pro’s choice for flawless finishes!

## Quick Answers

- **What is this?** Everbuild – Everflex – 115 GP Building Mastic – For Joint Pointing and Sealing – Internal and External Use – Brown – 285ml by everbuild
- **How much does it cost?** NT$595 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/52471805-everbuild-everflex-115-gp-building-mastic-for-joint-pointing-sealing)

## Best For

- everbuild enthusiasts

## Why This Product

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

## Key Features

- • **Compact Power:** 285ml tube designed for easy handling and long-lasting application
- • **Finish Friendly:** Overpaintable surface lets you customize without compromising seal
- • **Weather Warrior:** Creates a durable, weather-resistant barrier for internal & external use
- • **Universal Joint Master:** Seals and points with precision on brick, wood, metal & glass
- • **Gap Filler Extraordinaire:** High solids formula fills gaps effortlessly, maintaining flexibility

## Overview

Everbuild Everflex 115 GP Building Mastic is a 285ml oil-based, high solids compound designed for versatile joint pointing and sealing. It offers a weatherproof, semi-dry flexible seal that adheres to common construction materials like brick, wood, metal, and glass. Ideal for both internal and external use, it’s overpaintable and perfect for low movement vertical joints, ensuring a professional, durable finish every time.

## Description

Everflex – 115 GP Building Mastic – For Joint Pointing and Sealing – Internal and External Use – Brown – 285ml

## Features

- 115 Gp Build Mastic
- Size: 285 ml
- Brand: Everbuild

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Toolbank |
| Part Number | EVBMASBR |
| Product Dimensions | 4.9 x 4.9 x 23 cm; 0.28 g |
| Item model number | MASBN |
| Size | 310ml |
| Colour | mastic brown |
| Style | CLASSIC |
| Material | Oil |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Special Features | weather resistant |
| Usage | Construction |
| Included Components | 1 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 0.28 g |

## Product Details

- **Brand:** Everbuild
- **Specific uses for product:** Construction
- **Material:** Oil
- **Item form:** Liquid
- **Special feature:** weather resistant

## Images

![Everbuild – Everflex – 115 GP Building Mastic – For Joint Pointing and Sealing – Internal and External Use – Brown – 285ml - Image 1](https://m.media-amazon.com/images/I/713Zq4u-4tL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: I've been in the building game a very long time.why after a week has this still not skinned? indoor 18oc + environment**
A: I have to, a good mastic doesn’t really skin, I remember when it first came out, it doesn’t skin to keep it flexible , that’s the idea of it, if it skins, as soon as you get heat on it, it cracks therefore useless

**Q: How long does it take for outside of mastic to form a skin ?**
A: A good dry day / should be enough!

**Q: What shade of brown is this sealant, lighter dark brown?**
A: This is a darkish brown

**Q: Does it come with nozzle as shown in pucture?**
A: Yes, it should come with the nozzle which is fitted via a small collar to the cartridge.

## Frequently Bought Together

- Everbuild – Everflex – 115 GP Building Mastic – For Joint Pointing and Sealing – Internal and External Use – Brown – 285ml
- ProDec Extra Strong Skeleton Caulking Gun for Applying 400ml and 310ml Cartridge Caulks, Sealants, Silicones, Adhesives - Professional Heavy Duty Applicator Suitable for High Viscosity Products
- Everbuild General Purpose Silicone Sealant – Waterproof – Suitable for Interior and Exterior Use – Clear – 280ml

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**Shop now:** [https://www.desertcart.tw/products/52471805-everbuild-everflex-115-gp-building-mastic-for-joint-pointing-sealing](https://www.desertcart.tw/products/52471805-everbuild-everflex-115-gp-building-mastic-for-joint-pointing-sealing)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-01-27*