Joints

Precision and strength for every finish

At Colcret, we understand that a good joint not only binds materials together, but also ensures durability, aesthetics and long-term performance. That’s why we have developed a range of gaskets to meet the most demanding needs of new construction and renovation.

Shipping to all Spain

You can contact us and request your shipment to any part of Spain, or visit us at any of our locations throughout the country.

We show you the product

Come to any of our locations, we will show you why our product is the one you are looking for .

Technical team

We have a technical team that will give you the best solutions adapted to your work. Easily contact our technicians at any time.

OUR MEETINGS

ColCret Junta Classic is a colored polymer-modified mortar for joints based on cement, aggregates of selected granulometry, synthetic resins, mineral pigments and organic and inorganic additives. Anti-efflorescent and water-repellent, fast drying and setting, with high plasticity, for sealing joints from 2 to 20 mm. Particularly recommended for situations where a fast trafficability and putting into service of the coating or pavement is required.

ColCret Junta Premium is a product based on high-strength cement, aggregates, pigments, synthetic resins and special additives to provide it with superior water repellency and high resistance to the proliferation of microorganisms.

Frequently Asked Questions About Joints

What joint width can I fill with a cementitious joint mortar?

It depends on the type of product used.
Standard cementitious grouts allow for a range of joint widths. For example, some grouts are formulated for wide joints (up to 20 mm), while others are specially designed for narrow joints between 1 and 4 mm; the latter are ideal for honed tiles and more precise finishes.

Yes. High-performance cementitious grouts feature water-repellent properties, low water absorption, and protection against mold and microorganisms, making them suitable for bathrooms, showers, kitchens, patios, and swimming pools, both indoors and outdoors.

Cleaning should be performed when the material loses its surface sheen and becomes opaque, indicating that setting has begun.
This time can vary from 10 minutes to several hours, depending on the joint width and environmental conditions. Cleaning too early can leave the joint empty, and cleaning too late can make it difficult to remove the material.

Under normal conditions:

  • Light traffic is usually possible after 24 hours.
  • Full curing may take between 72 and 96 hours, especially in damp areas or those exposed to water.
    These curing times ensure that the seal cures properly and is durable.

Some common mistakes are:

  • Using too much water when kneading, which can cause visible shrinkage.
  • Do not apply the product at temperatures below 5 °C or above 35 °C.
  • Failure to observe the minimum curing time after installing the cladding (24–48 hours).
  • Failure to properly clean the edges of the joint before applying the product.

Avoiding these issues is key to achieving a strong, uniform, and durable joint.