---
product_id: 15830628
title: "350pc Ultra Precision High Temp Silicone Rubber Plug & Cap Kit Powder Coating Custom Paint Supplies"
brand: "high temp masking supply"
price: "€ 49.56"
currency: EUR
in_stock: true
reviews_count: 9
category: "High Temp Masking Supply"
url: https://www.desertcart.pt/products/15830628-350pc-ultra-precision-high-temp-silicone-rubber-plug-and-cap
store_origin: PT
region: Portugal
---

# Color-coded for quick size ID Heat resistant to 600°F/315°C Flexible, durable & reusable silicone 350pc Ultra Precision High Temp Silicone Rubber Plug & Cap Kit Powder Coating Custom Paint Supplies

**Brand:** high temp masking supply
**Price:** € 49.56
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the deal with precision and heatproof power!

## Quick Answers

- **What is this?** 350pc Ultra Precision High Temp Silicone Rubber Plug & Cap Kit Powder Coating Custom Paint Supplies by high temp masking supply
- **How much does it cost?** € 49.56 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/15830628-350pc-ultra-precision-high-temp-silicone-rubber-plug-and-cap)

## Best For

- high temp masking supply enthusiasts

## Why This Product

- Trusted high temp masking supply brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last & Reuse:** Premium silicone stays flexible and strong—no hardening or breaking, job after job.
- • **Heatproof Performance:** Withstands extreme temps up to 600°F without cracking or shrinking—ideal for powder coating and plating.
- • **Color-Coded Convenience:** Instantly grab the right size with vibrant, fade-resistant colors that never bleed.
- • **Versatile Pro-Grade Kit:** Perfect for powder coating, anodizing, media blasting, painting, and more—your all-in-one masking solution.
- • **Precision Fit, Every Time:** 350 assorted plugs & caps cover holes/studs up to 3/8" for flawless masking.

## Overview

This 350-piece silicone plug and cap kit offers professional-grade, heat-resistant masking solutions for powder coating, painting, and plating. Featuring flexible, durable, and reusable plugs rated up to 600°F, the color-coded design ensures quick size selection for holes and studs up to 3/8". Trusted by pros for its premium silicone that resists cracking, shrinking, and hardening, this kit is a must-have for precision jobs in automotive, industrial, and DIY settings.

## Description

This is a great kit for all of those precision jobs with small, hard to reach holes, studs, pipes, fittings, etc. You will receive 350 high temp rated plugs and caps to fit every hole or stud up to 3/8" in diameter, as pictured. Benefits of our premium silicone products include: Heat proof up to 600°F Color will never fade or bleed Flexible, durable and reusable Will not crack, shrink, harden or break Excellent for powder coating, painting, anodizing, media blasting, etc. 100’s of uses around the home, shop, classroom 100% satisfaction guaranteed or your money back Color may vary from photos.

Review: Great product, durable and flexible. - I like how dang stretchy these things are, though they still seem strong enough for any job you need it for. I’m only using the vacuum caps for now on my car under the hood because I took some emissions systems off and needed to cap some holes off. The largest green cap seemed WAY too small to fit over one of the holes, but I just put some soapy water on the piece and it slipped right on! It still had some room to stretch too so it doesn’t seem like it will fatigue or get ruined by heat any time soon. I also like how long the caps/plugs are cuz it really makes it easy to customize to whatever length you need. The only thing that isn’t ideal is the colors of these. It would be nice if they offered the same set except in black so it would look more professional under the hood, but I knew that going into this. No complaints!
Review: good Money - great

## Features

- Flexible, durable and reusable.
- Withstands heat up to 600 degrees Fahrenheit/315 Celsius.
- Color coded - easily grab the right size.
- Premium quality silicone will not crack, shrink, harden or break.
- Use for powder coating, painting, plating, anodizing, media blasting, etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00Z9VEAQK |
| Best Sellers Rank | #605,752 in Automotive ( See Top 100 in Automotive ) #63 in Body Repair Paint Masking Tools |
| Brand | High Temp Masking Supply |
| Brand Name | High Temp Masking Supply |
| Color | Assorted |
| Customer Reviews | 4.6 out of 5 stars 205 Reviews |
| Global Trade Identification Number | 00616639117493 |
| Item Weight | 0.25 Kilograms |
| Manufacturer | Powder Pro Coating Supply |
| Manufacturer Part Number | 350PCPK |
| Material | Silicone Rubber |
| Material Type | Silicone Rubber |
| Model Number | 350PCPK |
| Number of Items | 350 |
| UPC | 616639117493 |
| Unit Count | 350.0 Count |

## Product Details

- **Material:** Silicone Rubber
- **Brand:** High Temp Masking Supply
- **Color:** Assorted
- **Item Weight:** 0.25 Kilograms
- **UPC:** 616639117493

## Images

![350pc Ultra Precision High Temp Silicone Rubber Plug & Cap Kit Powder Coating Custom Paint Supplies - Image 1](https://m.media-amazon.com/images/I/91JV48F0c0L.jpg)
![350pc Ultra Precision High Temp Silicone Rubber Plug & Cap Kit Powder Coating Custom Paint Supplies - Image 2](https://m.media-amazon.com/images/I/91MZ97UilxL.jpg)
![350pc Ultra Precision High Temp Silicone Rubber Plug & Cap Kit Powder Coating Custom Paint Supplies - Image 3](https://m.media-amazon.com/images/I/91ickSMSWEL.jpg)
![350pc Ultra Precision High Temp Silicone Rubber Plug & Cap Kit Powder Coating Custom Paint Supplies - Image 4](https://m.media-amazon.com/images/I/81UFKlhFocL.jpg)
![350pc Ultra Precision High Temp Silicone Rubber Plug & Cap Kit Powder Coating Custom Paint Supplies - Image 5](https://m.media-amazon.com/images/I/91cLxl7gUPL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product, durable and flexible.
*by J***N on March 25, 2020*

I like how dang stretchy these things are, though they still seem strong enough for any job you need it for. I’m only using the vacuum caps for now on my car under the hood because I took some emissions systems off and needed to cap some holes off. The largest green cap seemed WAY too small to fit over one of the holes, but I just put some soapy water on the piece and it slipped right on! It still had some room to stretch too so it doesn’t seem like it will fatigue or get ruined by heat any time soon. I also like how long the caps/plugs are cuz it really makes it easy to customize to whatever length you need. The only thing that isn’t ideal is the colors of these. It would be nice if they offered the same set except in black so it would look more professional under the hood, but I knew that going into this. No complaints!

### ⭐⭐⭐⭐⭐ good Money
*by A***M on May 16, 2026*

great

### ⭐⭐⭐⭐⭐ but works great and saves a lot of time from having to ...
*by P***K on June 15, 2016*

I use these when painting, it's a little pricey, but works great and saves a lot of time from having to tape screws etc. I have not baked anything with it on, so don't know how it performs in the heat, but assumes it works well since designed for powder coating. Overall works as intended and save me a ton of time.

## Frequently Bought Together

- 350pc Ultra Precision High Temp Silicone Rubber Plug & Cap Kit Powder Coating Custom Paint Supplies
- High Temp Masking Supply 235 Piece Silicone Rubber Plug Set - Sizes 1/32" to 1" - Tapered Stoppers for Powder Coating, Painting, Ceramic Coating, Sealing Holes - Non-Toxic, Flexible, Reusable
- 20pc Extra Large High Temp Silicone Rubber Plug Kit Powder Coating Custom Paint Supplies

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.pt/products/15830628-350pc-ultra-precision-high-temp-silicone-rubber-plug-and-cap](https://www.desertcart.pt/products/15830628-350pc-ultra-precision-high-temp-silicone-rubber-plug-and-cap)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-07-06*