Short answer: dry coating is suitable for stable and widely applicable functional finishing, while wet coating is useful when special hand feel, microporous structure or specific moisture permeability is required.
Key Takeaways
- Start with the target: waterproofness, breathability, hand feel, thickness or cost.
- The same base fabric can feel very different under different coating routes.
- Sampling should evaluate both test data and wearing experience.
Dry coating characteristics
Dry coating usually forms a continuous or semi-continuous functional layer through coating, drying and curing. It is used for waterproofness, wind resistance, hand-feel adjustment and selected special finishes. Its advantage is a clearer process window and stable bulk control.
For light outdoor, commuting, cycling and general protective fabrics, dry coating often balances cost, efficiency and performance.
Wet coating characteristics
Wet coating can form special structures through phase separation and related routes, helping moisture permeability, hand feel or higher-value functions. It is more sensitive to recipe, coagulation, washing and post-treatment.
If the buyer needs a softer touch, special membrane-like feel or specific moisture permeability, wet coating is worth evaluating, but development and control requirements are higher.
How to choose
Break the choice into four questions: What is the end use? Is hydrostatic pressure required? Will it be worn next to skin? Is weight or hand feel sensitive? With these answers, dry coating, wet coating or lamination can be selected more logically.
TTK Recommendation
No process is universally better; fit to scenario matters. TTK recommends comparing data, hand feel and bulk feasibility through sample testing.
FAQ
Can dry coating be breathable?
Yes, but breathability depends on formula, coating thickness and fabric construction.
Is wet coating always more expensive?
Development and control costs are often higher, but the final evaluation depends on target performance and order scale.
Next Step
Contact TTK's process team to define a coating route based on target water pressure, breathability, hand feel and budget.