Earthaus Plaster

Application, care, and data for every Earthaus finish — plus the sealers and Primer Grit that complete the systems.

Finishes & Products

Water-resistant burnished finish for showers and wet areas, over a required membrane.

Tadelakt Finish

Tadelakt is water-resistant, not a waterproofing system — a code-approved membrane is always required in wet areas.

Isn't Tadelakt waterproof? Why do I need a membrane?

Tadelakt is not recommended for shower floors — constant standing water causes staining and wear. Use it on walls instead.

Can I apply Tadelakt on my Shower Floor?

Tadelakt can be used in steam showers when installed over a code-compliant, steam-rated substrate by qualified professionals.

Can I use Tadelakt in a Steam Shower?

Tadelakt is not recommended inside bathtubs — it is not designed for full immersion. Use it on tub surrounds instead.

Can I finish a bathtub in Tadelakt?

Tadelakt is not recommended for kitchen countertops — food oils and acids cause staining, etching, and wear.

Can I apply Tadelakt to Kitchen Countertops?

Tadelakt cannot be finished matte in wet areas — the polished surface is what makes the water resistance work.

Can my Tadelakt be finished Matte?

Non-professionals can do Tadelakt with training and practice, but wet areas like showers demand serious preparation.

I'm not a Plasterer. Can I do Tadelakt in a wet area myself?

Earthaus connects you with experienced plaster artisans through a free referral — submit the form and hear back within one business day.

How can I find a Professional to install my Tadelakt Plaster?

Is Tadelakt right for your space? Suitable surfaces, skills needed, and finding an installer.

Planning your project

Summary of the official Earthaus Tadelakt Installation Guide: materials, preparation, application, sealing, and downloads.

Tadelakt Installation Guide

Video guide for preparing a shower substrate for the Earthaus Tadelakt Finish system.

Tadelakt: Shower Substrate Preparation

Video guide for applying the Base Plaster coats in a Tadelakt shower installation.

Tadelakt: Shower Base Coat Application

Video guide for applying and burnishing the Tadelakt Plaster finish coats in a shower installation.

Tadelakt: Shower Finish Coat Application

You don't need to finish the whole bathroom in one day — work one wall at a time, corner to corner.

Do I have to apply the Tadelakt Finish to my whole bathroom in one day?

Caulk is required wherever Tadelakt meets another surface in wet areas — use clear, mold-resistant silicone.

Do I need to caulk Tadelakt where it meets the shower floor?

Product data for Earthaus Tadelakt Plaster: composition, coverage, technical properties, application requirements, and storage.

Tadelakt Plaster — Product Data Sheet

How to handle outside corners and where to embed reinforcing fiberglass mesh in a Tadelakt shower installation.

Tadelakt Showers: Corners, Edges & Reinforcing Mesh

Use a modified thinset meeting ANSI 118.11 for the Tadelakt key coat — VersaBond and Schluter ALL-SET both qualify.

What Kind of Thinset Should I Use for Tadelakt?

The full Tadelakt system — substrate to sealed finish — with video guides and product data.

Installation

A Tadelakt shower is ready for water 24 hours after the final beeswax coat — longer if silicone caulk is still curing.

How long after the wax coat is applied is the shower ready for use?

Clean Tadelakt with gentle, pH-neutral, plant-based products — never acidic cleaners, bleach, or abrasives.

How do I clean my Tadelakt Shower?

Reapply Beeswax Sealer at least once per year; reapply Olive Oil Soap only when the surface shows signs of wear.

How often do I need to reapply Soap and Wax to Tadelakt?

You can drill into fully cured Tadelakt with a masonry bit — then seal around fixtures with silicone caulk.

Can I drill into Tadelakt to install doors and fixtures?

How to clean, maintain, and repair an Earthaus Tadelakt Finish — routine care, damage types, and patching.

Tadelakt Finish — Care & Maintenance Guide

Maintaining Tadelakt: cleaning, resealing with soap and wax, cure times, and fixtures.

Care and Maintenance

Temporary hairline cracks that appear when Tadelakt gets wet are normal and disappear as the plaster dries.

My Tadelakt Plaster has hairline cracks when it gets wet. Is that normal?

Tadelakt darkening temporarily when wet is normal — the color returns as the surface dries.

My Tadelakt Plaster darkens when it gets wet. Is that normal?

How to repair fine hairline cracks in a Tadelakt Finish with a filling and resealing technique.

Tadelakt Crack Repair Technique

Tadelakt walls can be refinished by sanding off the sealed layer and reapplying all four finish coats.

Can a Tadelakt wall be Refinished?

Common issues explained, crack repair steps, and how to refinish a Tadelakt surface.

Troubleshooting & repair

Earthaus Marble Plaster dries to a velvety matte finish when left unburnished — sheen is controlled entirely by the burnishing process.

Can Marble Have a Matte Finish?

A Stone Plaster base coat gives Marble Finish the correct absorption rate, a flat even surface, and uniform color.

Why Do I Need to Apply a First Coat of Stone Plaster Before the Marble Finish?

Straining Marble Plaster removes fine particles that would otherwise leave specks, drag marks, and scratches in the polished surface.

Why Do I Have to Strain the Marble Plaster?

Practical tips to make straining Marble Plaster faster and cleaner: the right mesh, pre-soaking, small batches, and a helper.

I'm Finding the Marble Straining Process Challenging — Do You Have Any Tips?

How to refinish a Marble Finish: light resurfacing over a sound existing finish, or full removal and reapplication for major defects.

What Are the Steps to Refinish Earthaus Marble Finish?

Polishing trouble with Marble Plaster almost always comes down to burnishing timing, water use, trowel condition, or drying conditions.

I Can't Seem to Get the Marble Plaster to Polish — What Am I Doing Wrong?

Olive Oil Soap Sealer on Marble Finish is optional in dry areas but strongly recommended in wet, high-humidity, or high-traffic spaces.

Do I Have to Apply Olive Oil Soap Sealer to Marble Finish?

Step-by-step summary of the Earthaus Marble Finish installation: substrate prep, Stone base coat, two Marble coats, burnishing, and sealing.

Marble Finish — Installation Guide

Watch the official Earthaus video guide showing how to apply the Marble Finish from start to finish.

Marble Finish Application Video

How to clean, maintain, and repair an Earthaus Marble Finish: gentle plant-based soap, no acidic cleaners, and simple repair steps.

Marble Finish — Care & Maintenance Guide

Product data for Earthaus Marble Plaster: composition, packaging, interior-only use, coverage, storage, and shelf life.

Marble Plaster — Product Data Sheet

Ultra-smooth, polished finish with depth and movement.

Marble Finish

Sealing Stone Plaster with Olive Oil Soap Sealer is optional — it adds sheen and durability, while unsealed walls stay matte.

Do I Need to Seal Stone Plaster with Olive Oil Soap Sealer?

Stone Plaster walls can be refinished — sand and recoat for light renewal, or re-prime and rebuild both coats for a full redo.

Can I Refinish a Stone Plaster Wall?

Stone Finish can go over lightly textured drywall directly; deeper textures need scraping, extra coats, or a skim coat first.

Can I Apply Stone Finish Over Textured Drywall?

Step-by-step guide to installing Earthaus Stone Finish: priming, mixing, two 1/32" coats, and Olive Oil Soap sealing.

Stone Finish — Installation Guide

How to clean and maintain Earthaus Stone Finish, plus how to handle staining, cracking, and chipping.

Stone Finish — Care & Maintenance Guide

Product data for Earthaus Stone Plaster: composition, coverage (150 ft²/bag), usage, limitations, storage, and safety.

Stone Plaster — Product Data Sheet

Smooth, versatile finish with subtle depth — our most popular.

Stone Finish

Sand Plaster can be sealed with Olive Oil Soap Sealer for a wipeable, water-resistant surface — or left matte and unsealed.

Can I Seal Sand Plaster?

Step-by-step guide to applying Earthaus Sand Finish: priming with grit, mixing, and two 1/32" coats for a matte, granular texture.

Sand Finish — Application Guide

How to care for unsealed Earthaus Sand Finish: dry dusting and vacuuming, plus how to handle stains, cracks, and chips.

Sand Finish — Care & Maintenance Guide

Product data for Earthaus Sand Plaster: composition, coverage (100 ft²/bag over drywall), usage, limitations, storage, and safety.

Sand Plaster — Product Data Sheet

Textured, granular finish with a rustic feel.

Sand Finish

Step-by-step guide to applying Earthaus Base Finish: priming with grit, mixing, two coats, plus care, repair, and storage.

Earthaus Base Finish — Application Guide

Product data for Earthaus Base Plaster: Tadelakt basecoat or rustic finish plaster — composition, coverage, storage, and safety.

Base Plaster — Product Data Sheet

Base Finish

Primer is required under Lime Slurry on painted or sealed surfaces, but not on porous, unpainted mineral substrates.

Do I Need to Prime Before Applying Earthaus Lime Slurry?

Step-by-step guide to applying Earthaus Lime Slurry: prep, mixing for 1- and 5-gallon sizes, two brushed coats, and optional sealing.

Lime Slurry Finish — Application Guide

Product data for Earthaus Lime Slurry: interior/exterior brushed coating — composition, coverage, colors, storage, and safety.

Lime Slurry — Product Data Sheet

Brushed, opaque lime coating with a fine sandy texture.

Lime Slurry Finish

Limewash needs a PVA or latex primer over painted or sealed walls; porous mineral substrates need no primer.

Can I Apply Earthaus Limewash Directly Over Painted Walls or Do I Need a Primer?

How to get more depth and mottling in Limewash using layering, random brush strokes, and two-color fresco techniques.

My Limewash Looks Flat and Washed Out — How Do I Get More Depth and Mottling?

Earthaus offers no dedicated Limewash sealer — the finish performs best unsealed, though select third-party sealers can be used.

Can Limewash Be Sealed?

Earthaus Limewash works on exterior brick, stone, and stucco when porous and properly detailed against moisture and freezing.

Can Earthaus Limewash Be Used on Exterior Surfaces?

Porous walls should be lightly dampened before Limewash to prevent flash drying; primed or painted walls should not be.

Do I Need to Dampen the Wall Before Applying Limewash?

Step-by-step guide to installing Earthaus Limewash: substrates, mixing, brush techniques, two-coat application, and care.

Limewash Finish — Installation Guide

How to care for unsealed Earthaus Limewash: dry dusting and vacuuming, plus repair steps for superficial and deep stains.

Limewash Finish — Care & Maintenance Guide

Product data for Earthaus Limewash: breathable brushed lime paint — composition, coverage (~200 ft²/gal), colors, storage, safety.

Limewash — Product Data Sheet

Brushed lime paint for soft, matte, mottled walls.

Limewash Finish

Product data for Earthaus Olive Oil Soap Sealer: castile soap sealer for plaster — dilution ratios, coverage, use, and storage.

Olive Oil Soap Sealer — Product Data Sheet

Product data for Earthaus Beeswax Protective Sealer: water-based beeswax emulsion — coverage, finish use, and application steps.

Beeswax Protective Sealer — Product Data Sheet

Product data for Earthaus Breathable Sealer: siliconate concentrate for exterior lime finishes — dilution, coverage, and safety.

Breathable Sealer — Product Data Sheet

ASTM D6490 test results: Earthaus Breathable Sealer keeps lime plaster at 15.1–15.9 perms — more breathable than NHL or cement stucco.

Breathable Sealer — Water Vapor Permeability Test Results

How to apply Earthaus Acrylic Sealer: three thin coats over cured interior plaster for added stain and water resistance.

Acrylic Sealer — Application Guide

Product guide for Earthaus Primer Grit: pumice primer additive — mixing ratio (1 cup/gal), compatible finishes, and primer brands.

Primer Grit — Product Guide

Product data for Earthaus Bond Plaster: a PHL bonding basecoat for hard-to-plaster substrates — composition, coverage, storage, and safety.

Bond Plaster — Product Data Sheet

How to install Earthaus Bond Plaster: compatible substrates, the Edge Pull adhesion test, coat thickness, mixing, and application.

Bond Plaster — Installation Guide

Sealers and Primer Grit — data sheets and guides.

Accessory Products

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