29. Frequently asked questions about polyaspartic polyurea
1. Is polyaspartic coating a type of polyurea?
In a typical system, the amine-functional polyaspartic ester reacts with isocyanate to form urea linkages, so it is commonly classified within polyurea-related technology. Commercial products may include other structures or blended components. Check the formulation category and technical description rather than rely only on an abbreviated name.
2. Is it always better than epoxy?
There is no universal answer independent of use. Polyaspartics may be worth assessing for certain exposed finishes and rapid cure. An epoxy system already meeting the task should not be replaced merely because another technology sounds newer. Compare complete systems or validate a compatible combination.
3. Can every polyaspartic coating be used outdoors?
No. Check resin and hardener chemistry, pigments, finish design and relevant weathering information. Indoor grades, clear coats, particular colors and decorative textures each need their own suitability assessment.
4. Does higher solids content mean a better product?
Solids content is important but does not describe overall quality. Application viscosity, actual film formation, working window, durability and intended function also matter. Distinguish weight solids from volume solids to avoid errors even in basic coverage calculations.
5. Can it be applied directly over old paint?
First establish the old coating’s type, adhesion, contamination, aging and compatibility. An intact appearance can conceal contamination or interface problems. Decide whether to retain it after cleaning, necessary preparation and a representative trial.
6. How soon can the coating be used?
Timing depends on the grade, environment and activity. Walking, heavy loads, water and chemical exposure can have different requirements. Touch-dry time is not a universal opening time. Define permitted use and its acceptance basis in the contract before work.
7. Is a Junaimei matte topcoat suitable for every floor?
The name alone cannot establish suitability. Check abrasion, loads, moisture, slip resistance and cleaning against the selected grade’s documentation. Matte describes gloss; it does not automatically establish heavy-duty capacity or wet slip resistance.
8. Is a hammered topcoat a slip-resistant floor coating?
Hammered describes decorative texture, not a validated slip-resistant system. Floor use requires product support for that application and relevant slip assessment. For equipment housings, focus on protection and appearance.
9. Does an expensive material eliminate the need for primer?
Primer requirements depend on substrate and system, not price. Certain specialist grades may allow direct application under defined conditions. That permission cannot be extended to all polyaspartic products.
10. How many maintenance-free years can be guaranteed?
There is no single answer for all grades and exposures. Material, thickness, substrate, application, environment and maintenance act together. A meaningful durability commitment needs defined conditions, maintenance obligations and responsibilities rather than an unconditional number of years.