# Polyurethane Foam Sealant Koelner Piana RPP-45-K 750 ml — Gun-Applied, All-Season

**URL:** https://aio.lv/en/product--koelner-rpp-45-k--12066499
**Data updated:** 2026-03-12 21:45 (EET)
**Category:** Paints and varnishes
**Manufacturer:** Koelner
**Manufacturer code:** RPP-45-K
**EAN:** 5906675143392
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 9.08 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--koelner-rpp-45-k--12066499

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Koelner Piana RPP-45-K is a 750 ml gun-applied, all-season polyurethane mounting foam for sealing, insulating and filling gaps and joints. Supplied in a cartridge for use with a foam gun, it provides adhesion to common construction substrates and is suitable for window and door installation, thermal and acoustic insulation, and general sealing tasks.

## Long description

Koelner Piana RPP-45-K 750 ml is a gun-applied, all-season polyurethane mounting foam designed for sealing, insulating and filling gaps and joints in building works. Supplied in a cartridge for use with a foam gun, this foam adheres to common construction substrates and is formulated to provide durable thermal and acoustic insulation as well as reliable adhesion during window and door installation and general sealing tasks.
Advantages
The product delivers controlled expansion and high yield when applied with a compatible foam gun, allowing for accurate dosing and reduced waste. It forms a resilient closed- and open-cell structure that improves thermal insulation and reduces sound transmission. The foam bonds to a wide range of substrates, including concrete, brick, wood and many plastics, and cures to a stable, sandable material. It is suitable for use across a wide temperature range, enabling year-round application when handled according to manufacturer recommendations.
Suitable for
Sealing joints and gaps around windows and doors
Thermal insulation of cavities and voids
Acoustic sealing between structural elements
Filling uneven surfaces and cavities before finishing
General mounting and installation tasks requiring foam sealing
Key specifications
Formulation: Polyurethane mounting foam, gun-applied cartridge
Volume: 750 ml cartridge
Application season: All-season (usable in a wide temperature range when applied properly)
Compatibility: Bonds to concrete, brick, wood and many construction plastics
Curing: Foam expands and cures to a resilient, sandable material
Performance: Provides thermal and acoustic insulation and gap filling
How to use
Shake the cartridge thoroughly before use and attach it to a compatible foam gun. Apply to clean, dust-free and slightly damp surfaces for optimal adhesion and curing. Dispense foam in layers for deep cavities, allowing each layer to partially cure before adding more. After curing, excess foam can be trimmed with a knife and finished by sanding or covering with appropriate sealants or trim. Follow safety instructions for ventilation and protective equipment while dispensing and curing.
Usage recommendations
For consistent results, use a dedicated polyurethane foam gun and perform a small test application to adjust the gun flow. Store cartridges upright in a cool, dry place and avoid freezing temperatures. Allow cured foam to reach full strength before applying mechanical loads or finishing materials.

## FAQ

### How much does the Koelner Piana RPP-45-K 750 ml foam sealant cost, and is it available for purchase?

The price is 10.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 789 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 07.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Koelner products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Koelner service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12066499/68541229_large.webp