Master Builders Solutions — Cementitious coatings & leak stopping
MasterSeal 550
A name associated with flexible cementitious waterproofing in certain catalogues; SikaTop-550 Seal appears as a corresponding name in some markets.

- Cementitious coatings & leak stopping
Verify before you specify
A historical, regional or rebranded name. Do not treat it as a current product until it is verified.
Check the current manufacturer technical data sheet for this product and market.
What it is
Legacy/regional cementitious waterproofing product name.
A name associated with flexible cementitious waterproofing in certain catalogues; SikaTop-550 Seal appears as a corresponding name in some markets.
Source note: Legacy/market-dependent; verify. MasterSeal and Sika names correspond only in some markets; they are not interchangeable.
Where to apply
Only the surfaces and exposure types approved for the exact version.
Application overview
Follow exact product mixing, substrate preparation, layer and curing requirements.
High-level steps only. Mixing, coverage, thickness, timing and curing come from the current data sheet.
Technical controls
What the applicator must check before and during the job:
- Flexibility
- Crack bridging
- Thickness
- Curing
- Compatibility with finishes
Official documents
- Manufacturer reference page
- No data-sheet library is linked for this brand yet. Check the current manufacturer technical data sheet for this product and market.
The library may be a regional site. Confirm the data sheet matches the product and market you are buying.
Image and source status
Product image supplied from the manufacturer's published material.
Disclaimer
Check the current manufacturer technical data sheet for this product and market. Installation must follow the current TDS/SDS and the project specification.
More in this category

Sika
Current familySikaTop Seal-107
Product family — choose an exact grade
A cement-based coating for improving water tightness and protecting suitable concrete and masonry surfaces.
- Cementitious coatings & leak stopping
- Basements
- Balconies & terraces

Sika
Verify locallySikaTop-105 Seal
A cementitious waterproofing product listed in Sika Kenya's range.
- Cementitious coatings & leak stopping

Sika
Verify locallySikaTop-130 Flex
A flexible cementitious mortar/coating listed in the Sika Kenya range.
- Cementitious coatings & leak stopping
Not sure this is the right product?
Construction problems are not always solved by choosing a product from a catalogue. Tell us what you're working on, what problem you're experiencing, and what surface or structure is involved — we'll help you identify the appropriate solution.
