Otterbein CL 90

Masons Mortar

£27.85

Otterbein CL 90 Otterbein CL90 S is a high-quality hydrated lime with excellent water retention qualities in wet mortars. A soft whiteness making it particularly suitable for Lime Washes and Lime Paints. It’s exceptionally fine making it ideal for all plaster work, and when mixed with water, forms a superior, smooth lime putty for fresco and fine finishing work. The very fine particles in Otterbein CL90, result in lime washes, paints, and plasters, having the highest vapour permeability. It’s not a lot, but CL90-S is a very specialist binder, so it’s main uses are limited. CLICK HERE FOR DATA

Masons Mortar's own words, read from their page.

Buy from Masons MortarPrice seen 2026-09-05. Affiliate link.

Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.

UK company
Registered at Companies House as MASONS MORTAR LIMITED, number SC120873. Checked 2026-08-29.
Means the business is a British legal entity, not a British-sounding name owned elsewhere. It says nothing about where anything is made.
UK operations
Not yet checked.
Means people employed here, or premises they actually work from. We keep this separate from the company badge because a registered office can be an accountant's spare room, and a company can be registered in Britain while everything it does happens somewhere else. Where we have not looked, we say so rather than assuming.
British-owned
No majority shareholding traced outside the UK. Companies House.
Read from the register of people with significant control, following the chain of holding companies. It does not gate anything: a firm can be made here and owned elsewhere, and that is worth telling you rather than hiding.
Where it is made
The maker doesn't say, so neither do we.
This is about the individual product, not the company. A British firm can sell things made abroad, which is normal and not a criticism. We would rather tell you which is which than average them into a score.