Cement vs Epoxy vs Urethane Grout
Which to Use Where

What grout does, and what it does not do

Grout fills the joints between tiles. It locks the tiles into one surface, stops dirt collecting in the gaps and gives the floor or wall a finished look. It is also the part of a tiled surface that wears first: it is softer than the tile, it sits lower, and in a bathroom it is wet every day.

What grout is not is a waterproofing layer. In a properly built bathroom the membrane under the tiles keeps water out of the slab; the grout only keeps the surface tidy. The grouting vs waterproofing guide puts it plainly: regrouting is a surface refresh, not a waterproofing repair. Choosing a better grout reduces stains, mould and cleaning. It does not fix a leak coming through the floor.

The three grout types at a glance

Most Malaysian homes end up with a mix: cement grout in the living areas and bedrooms, and epoxy in the shower and wet kitchen, where the extra cost earns its keep.

Cement grout: cheap, familiar and porous

Cement grout is what most tilers use by default. It comes in two forms. Unsanded grout is for joints under 3 mm and is used with large-format tiles laid tight. Sanded grout is for joints of 3–12 mm and is stronger for floor use.

Its weakness is that it is porous. In a wet area it soaks up water, soap and dirt, darkens, and grows mould in the joints. The tiles comparison guide advises sealing all cementitious grout in wet areas with a penetrating grout sealer immediately after installation, and resealing annually. In practice few homeowners reseal every year, which is why cement grout in showers so often looks tired after a few years.

Colour matters too. Dark grout shows less staining but is harder to lighten if it discolours; white or light grout looks clean at first but needs regular cleaning in kitchens and bathrooms.

Epoxy grout: the wet-area upgrade

Epoxy grout is a resin system mixed from two parts. Once cured it is non-porous, so water, curry, coffee and soap stay on the surface where they can be wiped off. The site’s tile guide describes it as highly stain-resistant and waterproof, and ideal for wet kitchens and bathrooms, and the shower floor leak guide recommends it for the shower zone whenever a bathroom is renovated, because it is far more durable than cement grout there.

The trade-offs are cost and workmanship. Epoxy sets faster, is stickier to work with and must be cleaned off the tile face before it cures, or it leaves a haze that is hard to remove. It suits an experienced tiler, not a rushed job. The site’s tile guide puts the extra cost at RM1 – RM3 per sq ft over normal grout.

Urethane and other single-component grouts

A third group is sold ready-mixed in a tub, with no mixing on site. These are often labelled urethane or single-component grouts. One widely sold example, Fusion Pro from Custom Building Products, is described by its maker as a sanded grout with stain resistance and no sealing required, ready to use and easy to spread and clean, for walls and floors including shower floors.

Treat those as the maker’s claims for that product, not a property of every tub labelled “urethane”. Ask for the exact product, read its technical data sheet, and check that it is available locally in the colour you need before it goes on a quotation. For most Malaysian bathrooms the practical choice remains cement or epoxy.

Which grout for which part of the house

Joint width and why it matters

Joint width decides which grout will work. Narrow joints of 1–2 mm are popular with large-format porcelain because there is less grout surface to stain. Wider joints need a sanded grout or epoxy to stay strong. A joint that is too narrow for the tile, or a floor with no movement joints at all, is a common reason tiles later push against each other and lift; see popped floor tiles. No grout can fix a tile that is not bedded properly underneath.

What regrouting and upgrading costs

Indicative Klang Valley ranges for 2026, as published in the site’s tiling and waterproofing guides:

The grouting guide gives regrouting a surface life of about 3–5 years and uses a RM400 refresh as its example of the cheapest of the three jobs. If the ceiling below is stained, the question is not which grout but whether the membrane has failed: read the non-hacking toilet waterproofing guide first.

Signs the grout needs attention

• Dark or black joints that do not clean up: mould inside porous cement grout.
• Powdery or crumbling joints you can scratch out with a key.
• Cracked or missing grout, especially along the shower floor and the wall junction.
• Peeling sealant at the floor–wall junction and around the floor trap; renew it every one to two years, before it peels.
• Water stains on the ceiling below: a sign the problem is under the tiles, not in the joints.

How ClickBina quotes tile grouting

ClickBina is an experienced KL & Selangor contractor. We handle whole-house refurbishment and coordinate the trades, and we supply and install interior finishes chosen by budget and use case.

WhatsApp us your job details for a quote. A site visit is RM150, waived if you go ahead. The price is flat, with no hidden charges, and we reply within the hour. ClickBina is SSM-registered.

Sources & methodology

This guide draws on material already published on this site: the tiles comparison guide (sanded and unsanded joint widths, epoxy grout and its extra cost, sealing cement grout), the flooring types guide (epoxy versus cement grout, grout colour), the grouting vs waterproofing guide (regrouting cost and life, membrane cost) and the shower floor leak guide (epoxy in showers, sealant renewal). The single-component grout description is from the maker’s product page for Fusion Pro Single Component Grout (Custom Building Products, product ID TDS-242), read in September of this year. Prices are typical Klang Valley market ranges for 2026, not fixed rates.