What is this silicone sealant suitable for?

It is suitable for elastic joints on natural stone, marble, bluestone, masonry, and sanitary applications.

Does this sealant cause staining on porous stone?

No, the neutral formulation prevents edge zone staining and oil marks on natural stone.

Can this silicone sealant be painted over?

No, this silicone sealant is not paintable.

What joint width can be sealed with this product?

It is suitable for joint widths from 5 mm to 30 mm.

Is this product suitable for outdoor use?

Yes, it is weather- and UV-resistant, making it suitable for both indoor and outdoor applications.

RECTAVIT Recta-Mastic 180 jointing sealant for natural stone bluestone grey (310 ml) - 120533

Name: RECTAVIT Recta-Mastic 180 jointing sealant for natural stone bluestone grey (310 ml) - 120533
Brand: RECTAVIT
SKU: 02379134
Price: 7.9 EUR
Availability: PreOrder

Supplier number: RECTAVIT 120533 | EAN 5412926952199

From 12 piece €7.90

From 24 pieces €7.11 - €18.96 saving

From 36 pieces €6.72 - €42.67 saving

7.90 tax incl.

€6.53 excl. VAT (incl. all environmental contributions)

On order: delivered from 10/10/2026

The minimum purchase order quantity for the product is 12.

Ordered before 20:00 - delivered as of 10/10/2026
Shipping costs €6.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Durable sealing for natural stone

Practical benefits

No staining on surfaces: You protect sensitive surfaces like marble and bluestone from discoloration thanks to the non-staining neutral formulation.
Long-lasting flexible joints: You absorb structural movements smoothly with Rectavit RM 180, maintaining permanent elasticity across interior and exterior joints.
Reliable weather resistance: You create dependable seals that resist water, moisture, UV exposure, and wide temperature fluctuations over time.

In a nutshell

The right choise for

With the Rectavit Recta-Mastic rm 180 sealant, you seal natural stone reliably and without staining. Its neutral formulation prevents edge-zone discoloration and oil marks on porous surfaces such as marble and bluestone. The silicone remains permanently elastic, smoothly absorbing structural movements in joint widths ranging from 5 mm to 30 mm. Whether you are sealing thresholds, windowsills, kitchen worktops, or sanitary joints in walk-in showers, you achieve a clean and waterproof result every time. Highly resistant to weather and uv exposure, this sealant performs consistently well both indoors and outdoors.

Product information FAQ

€7.90

tax incl.

Key features according to our expert

Net volume: 310 ml
EUH-statements: EUH210
Relative density: 1,025
ADR packing group: Not applicable
ADR class: Not applicable
UN number: Not applicable
Colour (manufacturer): Marble grey
Physical state: Liquid
Flash point: >100 °C
Fire-resistant: No
Packaging: Cartridge

Scope of delivery

Canister: 310 ml

Product description

Permanently elastic and neutral joint sealant. Extremely suitable for seals on natural stone and other porous substrates.

Application

Suitable for sanitary applications

Features

Easy to process
Good colour fastness
Non-corrosive, neutral
Permanent and durable elasticity
Fast skin formation
No staining on porous substrates such as marble, bluestone, etc.
Good adhesion on all common building substrates

Supplemental hazard information

EUH210: Safety data sheet available on request.

Documents

⤓ Safety sheet PDF

All Features

Net volume: 310 ml
Euh-statements: EUH210
Relative density: 1,025
Adr packing group: Not applicable
Adr class: Not applicable
Un number: Not applicable
Colour (manufacturer): Marble grey
Physical state: Liquid
Flash point: >100 °C
Fire-resistant: No
Packaging: Cartridge

Brand RECTAVIT
02379134
EAN 5412926952199
Supplier number RECTAVIT 120533

Frequently asked questions about this product

Answered by specialists

What is this silicone sealant suitable for?: It is suitable for elastic joints on natural stone, marble, bluestone, masonry, and sanitary applications.
Does this sealant cause staining on porous stone?: No, the neutral formulation prevents edge zone staining and oil marks on natural stone.
Can this silicone sealant be painted over?: No, this silicone sealant is not paintable.
What joint width can be sealed with this product?: It is suitable for joint widths from 5 mm to 30 mm.
Is this product suitable for outdoor use?: Yes, it is weather- and UV-resistant, making it suitable for both indoor and outdoor applications.