A release liner, also known as release paper, is a paper- or plastic-based film sheet that is put during production to stop a sticky surface from attaching too quickly. It has a release agent coated on one or both sides, which offers a release effect against any kind of sticky material, like an adhesive or mastic.
Release liners come in a variety of colours, with or without printing on the front, rear, or under the low surface energy coating. Release is the act of separating a liner from something sticky; the liner serves as the vehicle for the release agent.
Selecting the right release paper sheet!
Selecting the right release paper sheet for your specific application is crucial to ensure that it performs as expected and provides optimal results.
Here are a few tips and considerations for selecting the right release paper sheet and properly using and storing it:
1. Identify the specific application and requirements:
The first step is to identify the specific application and requirements for the release paper sheet. Factors to consider include the type of adhesive, the surface it will be applied to, the temperature range, and the desired release properties.
2. Consider the type of release coating:
Different release paper sheets have different release coatings, such as silicone, wax, or polyethylene (PE). Each type of coating has its own advantages and disadvantages and is suited for different applications. For example, silicone-coated release papers are suitable for high temperature and high cohesive strength adhesives, whereas wax-coated release papers are ideal for low temperature and low cohesive strength adhesives.
3. Think about the thickness and weight of the release paper:
The thickness and weight of the release paper will affect its strength and handling properties. Thicker release papers are typically stronger and more durable, but they may be harder to handle.
4. Look for additional features:
Some release papers are pre-slit, perforated, or have a printed grid for easy alignment. Consider if these features are required for your application or not.
5. Store the release paper properly:
Release paper sheets should be stored in a cool, dry, and dust-free environment. They should also be protected from sunlight, heat, and moisture to prevent the release coating from deteriorating.
Once you’ve selected the right release paper sheet for your application, it’s important to use it properly to ensure optimal results.
It’s important to use the right amount of adhesive, apply it to the right surfaces, and cure it properly to ensure a strong bond.
