---
product_id: 606423033
title: "SIKA – PU expanding foam spray – SikaBoom AP – Single component polyurethane foam – Fast curing – HFC-free – Easy to apply – 250 ml – Light Yellow"
price: "102 Lei"
currency: RON
in_stock: true
reviews_count: 8
url: https://www.desertcart.ro/products/606423033-sika-pu-expanding-foam-spray-sikaboom-ap-single-component-polyurethane
store_origin: RO
region: Romania
---

# Expands up to 3 inches Superior thermal insulation High-density durable seal SIKA – PU expanding foam spray – SikaBoom AP – Single component polyurethane foam – Fast curing – HFC-free – Easy to apply – 250 ml – Light Yellow

**Price:** 102 Lei
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal Smart, Live Comfortable – Don’t Let Gaps Define Your Space!

## Quick Answers

- **What is this?** SIKA – PU expanding foam spray – SikaBoom AP – Single component polyurethane foam – Fast curing – HFC-free – Easy to apply – 250 ml – Light Yellow
- **How much does it cost?** 102 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/606423033-sika-pu-expanding-foam-spray-sikaboom-ap-single-component-polyurethane)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** High-density polyurethane foam that flexes with building movements for a resilient, long-lasting seal.
- • **Maximize Every Gap:** Expands aggressively to fill cracks up to 3 inches, ensuring no space is left behind.
- • **Effortless Application:** Shake, spray, and shape—cured foam is easy to trim for a flawless, professional finish every time.
- • **Tailored to Your Needs:** Available in 250 ml, 500 ml, and 750 ml cans—choose the perfect size for any project scale.
- • **Thermal & Acoustic Shield:** Keeps your space cozy and quiet by blocking cold drafts and dampening noise effectively.

## Overview

SikaBoom AP PU Joint Filler is a high-expansion, multi-position polyurethane foam designed for professional-grade filling, sealing, and insulating of gaps up to 3 inches. Engineered for durability and flexibility, it withstands building movement while providing superior thermal and acoustic insulation. Available in multiple sizes, this light yellow foam from Germany ensures a clean, efficient application with easy trimming for a perfect finish.

## Description

From the manufacturer HOW TO APPLY? Clean and moisten the surface to obtain maximum adhesion and expansion. Shake the can vigorously at least 20 times. Fix the nozzle and extrude the foam by pressing more or less hard on the trigger. Cured foam easy to cut for finishing.

## Features

- HIGH EXPANSION RATE – SikaBoom AP expandable foam provides effective filling, sealing and insulation to gaps and cracks up to three inches in size
- IMPROVED DURABILITY – Use this fixing foam to fill and insulate window connection joints and gaps in doorframes, AC duct and vents, roller blind housings and pipe entry points
- FLEXIBLE – Multi-positioning polyurethane foam is high density to provide a strong seal, withstanding building and material movement
- SUPERIOR INSULATION – Being a PU foam spray, it thermally insulates, keeps out the cold and draughts, and dampens noise
- CHOOSE YOUR SIZE – Cans come in 250 ml, 500 ml and 750 ml quantities of light yellow foam

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CRL3TH78 |
| Best Sellers Rank | #59 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Single-component Expanding Foam |
| Brand | SIKA |
| Colour | Light yellow |
| Country of Origin | Germany |
| Customer Reviews | 3.8 3.8 out of 5 stars (2,323) |
| Date First Available | 5 January 2024 |
| Generic Name | Expansing foam |
| Importer | Sika India Private Ltd. Plot No D 101/2, MIDC Industrial Area, Shiravane,, Nerul, 400706 Navi Mumbai, India, Contact: +91-22-6270-4038 |
| Included Components | 1 aerosol |
| Item Dimensions LxWxH | 6 x 6 x 20 Centimeters |
| Item Height | 20 Centimeters |
| Item Weight | 280 g |
| Item Width | 6 Centimeters |
| Item model number | 73836 |
| Manufacturer | Sika, Sika India Private Ltd. Plot No D 101/2, MIDC Industrial Area, Shiravane,, Nerul, 400706 Navi Mumbai, India, Contact: +91-22-6270-4038 |
| Model number | 73836 |
| Net Quantity | 250 Milliliters |
| Number of Memory Sticks | 1 |
| Packer | Sika India Private Ltd. Plot No D 101/2, MIDC Industrial Area, Shiravane,, Nerul, 400706 Navi Mumbai, India, Contact: +91-22-6270-4038 |
| Product Dimensions | 6 x 6 x 20 cm; 280 g |

## Images

![SIKA – PU expanding foam spray – SikaBoom AP – Single component polyurethane foam – Fast curing – HFC-free – Easy to apply – 250 ml – Light Yellow - Image 1](https://m.media-amazon.com/images/I/51skhTpKifL.jpg)
![SIKA – PU expanding foam spray – SikaBoom AP – Single component polyurethane foam – Fast curing – HFC-free – Easy to apply – 250 ml – Light Yellow - Image 2](https://m.media-amazon.com/images/I/61NGTxeBQSL.jpg)
![SIKA – PU expanding foam spray – SikaBoom AP – Single component polyurethane foam – Fast curing – HFC-free – Easy to apply – 250 ml – Light Yellow - Image 3](https://m.media-amazon.com/images/I/718dj8ClYsL.jpg)
![SIKA – PU expanding foam spray – SikaBoom AP – Single component polyurethane foam – Fast curing – HFC-free – Easy to apply – 250 ml – Light Yellow - Image 4](https://m.media-amazon.com/images/I/71k80mAjPEL.jpg)
![SIKA – PU expanding foam spray – SikaBoom AP – Single component polyurethane foam – Fast curing – HFC-free – Easy to apply – 250 ml – Light Yellow - Image 5](https://m.media-amazon.com/images/I/61mquFHjO2L.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***V on 9 April 2026*



### ⭐⭐⭐⭐ Review
*by Y***S on 5 April 2026*



### ⭐⭐⭐⭐⭐ Review
*by D***D on 10 May 2025*



## Frequently Bought Together

- SIKA – PU expanding foam spray – SikaBoom AP – Single component polyurethane foam – Fast curing – HFC-free – Easy to apply – 250 ml – Light Yellow
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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-05-05*