Does epoxy stick to quartz countertops?

Epoxy is a popular resin adhesive used for various DIY and construction projects. Quartz countertops are an increasingly popular choice for kitchen and bathroom renovation due to their durability, aesthetic appeal, and low maintenance. A common question that arises is whether epoxy will bond effectively to quartz. Here is a detailed look at using epoxy on quartz countertops.

Can You Use Epoxy on Quartz Countertops?

The short answer is yes, epoxy will bond to quartz countertops. However, there are some important factors to consider for proper application and maximum adhesion.

Quartz is an engineered stone made from crushed quartz bound together with resin. This gives quartz inherent non-porosity, making it more challenging for adhesives to penetrate and adhere. However, with proper surface preparation, epoxy can create a strong mechanical and chemical bond with quartz.

Surface Preparation for Applying Epoxy to Quartz

Proper surface preparation is key to achieve optimal epoxy adhesion on quartz. Here are the steps to follow:


  • Thoroughly clean the surface with a degreasing agent or denatured alcohol to remove any dirt, oil or other contaminants. This ensures the epoxy can adhere directly to the bare quartz.


  • Use a quartz etchant or mild acidic cleaner to slightly roughen up the smooth quartz surface. This creates micro-abrasions for the epoxy to mechanically bond with.


  • Lightly sand the surface with 120-150 grit sandpaper. This further improves surface texture for epoxy to grip.


  • Apply a primer coat of epoxy to increase surface area and tooth for the final epoxy pour to bond with. Allow primer to fully cure as per manufacturer instructions before adding final layer.

Pro tip: Always test epoxy adhesion on a small inconspicuous area first before doing the entire project.

Best Epoxy Types for Bonding to Quartz

Not all epoxies are created equal when it comes to quartz application. Here are the best options:

  • Two-part epoxies – These contain a resin and a hardener component that must be mixed immediately before use. They cure into a rigid plastic polymer that bonds tenaciously to surfaces.
  • Epoxies with quartz adhesion promoter – Some epoxy brands offer quartz-specific formulas or adhesion promoters to increase bonding on non-porous surfaces like quartz.
  • 100% solids epoxy – Solvent-free 100% solids epoxy is thick and minimizes shrinkage and pull-back from surfaces during cure.
  • UV-resistant epoxy – For countertops that get sunlight exposure, use an epoxy designed for UV resistance to prevent yellowing over time.

Epoxy Project Ideas for Quartz Countertops

Here are some creative ways to use epoxy on quartz countertops:

Resin Art

  • Embed photos, dried flowers or other decorative objects in clear casting resin for a unique art piece countertop.

Metallic Epoxy

  • A metallic colored epoxy poured over the quartz creates a glamorous shimmering finish. Popular choices are silver, gold and copper.

Faux Marble Epoxy

  • Combine white and gray epoxies with mica powders to achieve a faux marble look on your quartz countertop.

Crackle Effect Epoxy

  • Apply a crackle solution over quartz then pour colored epoxy over it. When dry, it leaves behind a distinct crackled texture.

Quartz Seam Fillers

  • Use colored epoxy to fill and seam gaps between adjoining quartz countertop slabs.

Safety Tips When Working with Epoxy

Epoxy resins contain chemicals that can irritate the eyes, skin and respiratory system. Follow these precautions:

  • Work in a well-ventilated area and use a respirator mask.
  • Wear gloves and eye protection.
  • Avoid touching resin with bare skin. Use tools to spread.
  • Clean up any drips immediately with alcohol.
  • Allow proper cure time based on epoxy instructions before using countertop.


Epoxy can create durable, decorative bonds with quartz countertops with proper preparation and product selection. Always test a small area first and follow safety procedures when working with epoxy. With some creativity, epoxy opens up many possibilities to customize the look of your quartz countertops.

Frequently Asked Questions About Using Epoxy on Quartz Countertops

Can I use any epoxy on my quartz countertop?

No, not all epoxies are formulated to bond well with non-porous surfaces like quartz. It’s best to use a high-quality two-part or 100% solids epoxy designed for use on quartz or other solid surfaces.

How should I prepare my quartz countertop before applying epoxy?

Proper cleaning, etching, sanding, and priming with a thin layer of epoxy are key preparation steps for the best adhesion. This gives the epoxy something to grip onto.

Is using epoxy on quartz countertops difficult for a DIYer?

Epoxy countertop projects can be done by an experienced DIYer willing to follow all safety precautions. The working time can be short once epoxy is mixed, so you need to work efficiently. Proper preparations are crucial.

Can epoxy bond to quartz countertops outdoors or in the garage?

Yes, epoxy will adhere to outdoor quartz installations as long as the surface is properly prepped. Be sure to select an epoxy designed for UV-resistance. Proper ventilation is still required.

How long does epoxy take to fully cure on a quartz countertop?

Cure times vary by brand, but most epoxies take 16-72 hours to fully harden and reach maximum strength when used on quartz countertops. Always follow manufacturer cure time instructions.

Can you use metallic epoxy on quartz?

Yes, metallic epoxy with mica or metal particles works beautifully on quartz for a shimmering, eye-catching look. Be sure to mix the metallic epoxy thoroughly so the coloring disperses evenly.

Is epoxy resistant to heat from hot pots on a quartz countertop?

Fully cured epoxy has good heat resistance, but sudden temperature changes or sustained heat exposure over 150°F may damage the epoxy bond. Use trivets for hot cookware.

Can you use epoxy to seal seams between adjoining quartz countertops?

Yes, colored sealing epoxy is a great way to fill in and create invisible seamed quartz countertop joints. Use a smoother tool to evenly distribute the epoxy into the seams.

Does epoxy yellow or stain over time on a quartz countertop?

Quality UV-resistant epoxies are formulated not to yellow with age. Staining can happen from spills over time if the epoxy surface is not properly cleaned and maintained. Apply a good quality sealant for protection.


Epoxy can create durable and decorative bonds on quartz countertops with proper preparation, product selection and safety precautions. When applying epoxy to quartz, always clean, etch and sand the surface first for optimal adhesion. Select a high-quality epoxy designed for use on non-porous surfaces. Allow for full cure time based on manufacturer guidelines before using the countertop. With some creativity, epoxy opens up endless possibilities for customizing and enhancing your quartz countertops.