Description
CHT QLE 1101 Blue is a two-part, addition-cure silicone coating for fabric, textile, and cloth applications that need a tough, flexible surface. Buyers evaluating an encapsulant for a textile-based assembly can use this low-viscosity system when full potting depth is unnecessary and a conforming coating better matches the part geometry. Part A is transparent and colorless, while Part B is transparent blue, making the two sides easier to distinguish before mixing.
Where This Encapsulant Alternative Is Used
QLE 1101 Blue is designed for industrial textile coating rather than deep electronic potting. It wets woven surfaces, follows flexible shapes, and cures into a silicone layer suited to fabric, belt, and roller-coating work. The blue tint gives operators a visible process cue without turning the cured material opaque. Its addition-cure chemistry supports low linear shrinkage, helping coated material retain dimensions during heat cure.
The system is appropriate when the assembly calls for a silicone barrier on cloth or a reinforced flexible surface. It can also support prototyping where teams need a pigmentable, low-viscosity elastomer that can be mixed, de-aired, applied, and heat cured. Suitability still depends on the fabric finish, contamination level, required adhesion, and production cure equipment. Run a representative adhesion test before releasing a new substrate or treatment into production.
Prepare the textile by removing loose fibers, dust, oil, and processing residue that could interrupt wetting. Hold the fabric flat during application so the liquid reaches the intended areas without pooling in folds. A trial panel can establish coating weight, penetration, color visibility, and cured hand before production settings are fixed. Keep the qualified material, tooling, and cure sequence together in the work instruction.
How the Encapsulant Chemistry Handles and Cures
Stir both components separately until uniform, then combine Parts A and B at a 1:1 ratio by weight. Mix thoroughly without scraping incompatible residue from tools or containers into the batch. The platinum catalyst is carried in Part A, so automated equipment must be kept free of cross-contamination from reactive silicone residues. Vacuum de-airing helps remove bubbles introduced during mixing before the material is coated onto the substrate.
CHT lists two heat-cure profiles in the technical data: 30 minutes at 100 degrees C or 10 minutes at 150 degrees C. Both components have a listed viscosity of 2,000 cP and density of 1.02. The cured material has Shore A 45 hardness. These values are typical data from the current manufacturer sheet, so production qualification should use the latest document and an application-specific test.
QLE 1101 Blue Specifications
| Property | Value |
|---|---|
| SKU | QUA QLE 1101BLUE |
| Chemistry | Two-part addition-cure silicone |
| Primary use | Fabric, textile, and cloth coating |
| Mix ratio by weight | 1:1 |
| Part A color | Transparent and colorless |
| Part B color | Transparent blue |
| Viscosity | 2,000 cP for each component |
| Cure profile | 30 minutes at 100 degrees C or 10 minutes at 150 degrees C |
| Hardness | Shore A 45 |
Choose QLE 1101 Blue when the process needs a visible two-part silicone coating with controlled heat cure and low-viscosity flow. Browse related specialty coatings for adjacent material formats. For manufacturer background and technical support resources, visit CHT.
Need Help?
Need help matching QLE 1101 Blue to a textile, coating thickness, or cure schedule? Call (800) 220-1966 or email [email protected].
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