---
product_id: 13730264
title: "Synkoloid 1204 \"Synko\" Exterior Spackling Paste, Quart"
brand: "synkoloid company"
price: "£31.15"
currency: GBP
in_stock: true
reviews_count: 8
category: "Synkoloid Company"
url: https://www.desertcart.co.uk/products/13730264-synkoloid-1204-synko-exterior-spackling-paste-quart
store_origin: GB
region: United Kingdom
---

# Paint-ready in 30-60 minutes High viscosity paste for smooth application Mildew & fungus resistant for lasting durability Synkoloid 1204 "Synko" Exterior Spackling Paste, Quart

**Brand:** synkoloid company
**Price:** £31.15
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fix it fast, finish it flawless—because your exterior deserves the best!

## Quick Answers

- **What is this?** Synkoloid 1204 "Synko" Exterior Spackling Paste, Quart by synkoloid company
- **How much does it cost?** £31.15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/13730264-synkoloid-1204-synko-exterior-spackling-paste-quart)

## Best For

- synkoloid company enthusiasts

## Why This Product

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

## Key Features

- • **Clean-Up Made Simple:** Soap and water clean-up means no harsh chemicals—perfect for eco-conscious pros.
- • **Built to Last Outdoors:** Resists mildew and fungus, ensuring your exterior fixes stay fresh and strong season after season.
- • **Fast-Track Your Finish:** Paint over repairs within an hour—no waiting days to refresh your surfaces.
- • **Effortless Exterior Repairs:** Smooth, high-viscosity paste spreads easily for flawless patching on wood, masonry, and stucco.
- • **Minimal Shrinkage, Maximum Impact:** Engineered to shrink less, so your repairs stay seamless and crack-free.

## Overview

Synkoloid 1204 'Synko' Exterior Spackling Paste is a premium, high-viscosity repair paste designed for exterior surfaces like wood, masonry, and stucco. It offers minimal shrinkage, mildew and fungus resistance, and allows painting within 30 to 60 minutes of application. Packaged in a convenient 1-quart jar, it cleans up easily with soap and water, making it ideal for durable, professional-grade exterior patching.

## Description

Product Description This superior quality exterior spackling paste for patch and repairs wood, masonry, stucco not subject to abnormal expansion or contraction. for surfaces not subject to abnormal expansion, unusual contraction. Minimum shrinkage. Soap and water clean up. Mildew and fungus resistant. May be painted over immediately. Paint within 30 to 60 minutes. Comes with 1-quart size. From the Manufacturer This superior quality exterior spackling paste for patch and repairs wood, masonry, stucco not subject to abnormal expansion or contraction. for surfaces not subject to abnormal expansion, unusual contraction. Minimum shrinkage. Soap and water clean up. Mildew and fungus resistant. May be painted over immediately. Paint within 30 to 60 minutes. Comes with 1-quart size.

Review: Exactly what I was looking for! - I bought this in an attempt to restore a badly pitted garden statue that was made of plaster, I think. Virtually the whole surface had to be smoothed before I could paint it. Since they intend to put it back outside I needed something rated as exterior (? What are they thinking? Plaster???) The exterior spackle was the perfect consistancy to spread over the pitted statue- even filled a rather large hole in the back! It sanded well and took the two layers of exterior primer. I'm now doing the actual detail work. We shall see if it holds up, but for now it seems sturdy- no chipping or flaking!
Review: This stuff is awesome if you have an old house! - If you have an old house with no real insulation, this stuff is awesome for repairing cracks and holes in plaster. We bought an old 1924 home with mostly cosmetic repairs required, and even though this is designed for exterior repairs, it seems to expand and contract with this old house. When I tried it on my dining room about three years ago, it was like working magic. Our sagging back porch had been raised more than a foot (with the roof of the house) after I repaired that room, and the stress fractures in the plaster that I had seen before the raising did not return. All the other rooms where no repairs were done were looking worse for the wear. Since then I have sworn by this stuff in every room in my plaster-walled home. Every place I've patched with this paste is still looking great. Any place where I have had to resort to another type of plaster or spackle has ended up in a mess with cracks that needed more repairs after the fact. It even works well on the old sheet rock. I highly recommend this!

## Features

- Superior quality exterior spackling paste for patch and repair of exterior surfaces
- For surfaces not subject to abnormal expansion, unusual contraction
- Minimum shrinkage; soap and water clean up
- Mildew and fungus resistant; may be painted over immediately
- Comes with 1-quart size

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002JL4HQQ |
| Best Sellers Rank | #356,622 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #859 in Wall Surface Repair Products |
| Brand Name | Synkoloid Company |
| Color | white |
| Compatible Material | Wood |
| Container Type | Jar |
| Customer Reviews | 4.4 4.4 out of 5 stars (98) |
| Full Cure Time | 6E+1 Minutes |
| Global Trade Identification Number | 00042446012049 |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Manufacturer | Synkoloid Company |
| Material Type | Wood |
| Model | 120-4 |
| Other Special Features of the Product | Minimum Shrinkage, Mildew and Fungus Resistant |
| Specific Uses For Product | Wall Repair |
| UPC | 042446012049 |
| Unit Count | 32.0 Fluid Ounces |
| Viscosity | High Viscosity |
| Volume | 32 Fluid Ounces |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Synkoloid Company
- **Item Form:** Paste
- **Material:** Wood
- **Special Feature:** Minimum Shrinkage, Mildew and Fungus Resistant
- **Specific Uses For Product:** Wall Repair

## Images

![Synkoloid 1204 "Synko" Exterior Spackling Paste, Quart - Image 1](https://m.media-amazon.com/images/I/81Wvw8OCkRL.jpg)

## Questions & Answers

**Q: If is for exterior I’m assuming resists water do I’m Wright?**
A: Once it hardens, it's water resistant. Great stuff!

**Q: Will this cover alligator paint and not crack?**
A: I doubt it.  I've used this product for years to fill nail and screw holes in exterior wood trim.

**Q: Can this be used to make external brick texture wall on a wood painting?**
A: I think you could apply it to a wood surface, then stamp it with a brick to create a brick texture. May need to let the spackling set up for ~ an hour before stamping an imprint on it

**Q: Can I make successive applications to fill a void on a wood corner about 1" x 3, or one cubic inch total.  Would need to be sanded on just two faces.**
A: Should work. If the hole is deep it may require more than 1 application. This is good stuff, the best filler I've ever used!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Exactly what I was looking for!
*by M***T on April 4, 2022*

I bought this in an attempt to restore a badly pitted garden statue that was made of plaster, I think. Virtually the whole surface had to be smoothed before I could paint it. Since they intend to put it back outside I needed something rated as exterior (? What are they thinking? Plaster???) The exterior spackle was the perfect consistancy to spread over the pitted statue- even filled a rather large hole in the back! It sanded well and took the two layers of exterior primer. I'm now doing the actual detail work. We shall see if it holds up, but for now it seems sturdy- no chipping or flaking!

### ⭐⭐⭐⭐⭐ This stuff is awesome if you have an old house!
*by S***G on March 19, 2013*

If you have an old house with no real insulation, this stuff is awesome for repairing cracks and holes in plaster. We bought an old 1924 home with mostly cosmetic repairs required, and even though this is designed for exterior repairs, it seems to expand and contract with this old house. When I tried it on my dining room about three years ago, it was like working magic. Our sagging back porch had been raised more than a foot (with the roof of the house) after I repaired that room, and the stress fractures in the plaster that I had seen before the raising did not return. All the other rooms where no repairs were done were looking worse for the wear. Since then I have sworn by this stuff in every room in my plaster-walled home. Every place I've patched with this paste is still looking great. Any place where I have had to resort to another type of plaster or spackle has ended up in a mess with cracks that needed more repairs after the fact. It even works well on the old sheet rock. I highly recommend this!

### ⭐⭐⭐⭐ Relatively easy to use
*by K***Y on June 5, 2021*

I liked the consistency of this, but did find it a little difficult to smooth out, thus the loss of one star. However, the proof of how this works is how it holds up in the elements as I was using it to repair some rotten areas of wood outside on porch posts. I won’t have any verdict on that for many months, so we shall see. I guess I would recommend trying it to anyone looking for patching and repair solutions as it isn’t all that expensive.

## Frequently Bought Together

- Synkoloid 1204 "Synko" Exterior Spackling Paste, Quart
- Synko Interior Spackling Paste 1 Qt3

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-17*