Frequently Asked Questions

Get the most responsive answers to common questions about SANVO and our production process. If what you are looking for is not here, do not hesitate to contact us.


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What is the reason for the poor bonding effect of silicone sealant / weak bonding or peeling?

1)Compatibility and bonding tests of the substrate are required before construction.
2)Clean the surface of the substrate before sizing.
3)Sizing for 2 to 3 days and then observe the curing depth of the adhesive strip, generally it will be fully cured in about 7 days.
4) Different grades of products have different gaps in the caulking gaps. Pay attention to the gaps when applying silicone sealant.

How to deal with the fading phenomenon of silicone sealant?

1)External factors: The thickness of the glue is thin, and after the direct exposure to ultraviolet light will lead to faster fading time.

2) Internal causes: Poor colouring power of the colour paste, the thinner the thickness of the glue, the longer the sun exposure, the faster the fading speed.

3) Transparent glue yellowing, some groups in the molecular structure of the glue strip is oxidised, resulting in yellowing.


  • The best thickness of the adhesive strip during construction is ≥6mm.
  • Replace the imported colour paste with good adhesion and optimise the product process formula.

Add antioxidants, stabilisers and other additives in the process production to improve the weather resistance and oxidation resistance of the product.

What is the standard drying time for spray paint?

At a room temperature of around 25°C, the surface drying time is around 10min and the actual drying time is around 60min. This can vary slightly in hot and cold weather. The optimum performance of the paint film is achieved after 24h of drying. The surface drying time is the minimum time that the paint film can be pressed lightly by hand without leaving fingerprints.

What is the reason for the poor atomisation of spray paint in cold weather? What is the solution?

It is not recommended to work when the temperature is below 10°C. The pressure of the spraying agent in the spraying tank will become lower due to the lower temperature, causing the pressure in the tank to drop and the atomisation effect to become worse.

You can use warm water at around 50°C to preheat the paint spray can for 3 to 5 minutes; for large outdoor areas, you can order high pressure spray paint.

What is the spray area for spray paint?

General spray paint can be sprayed 1.5m2, metal spray (including plating, hammered) can be sprayed 1.2m2, fluorescent spray paint can be sprayed 0.8m2. The coverage of the paint varies depending on the colour, with the darker colours having good coverage and a large spray area, and the lighter colours having poor coverage and a smaller spray area, as well as different application techniques.

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What is the reason for the uneven color of metallic glitter?

Metal spray painting is a highly skilled process and uneven film thickness or poor atomisation can cause this phenomenon. It is advisable to spray in a cross pattern back and forth to achieve a consistent film thickness.



How can I reach the SANVO customer support?

Our customer support will be happy to assist you (Monday to Friday 9am-6pm) via phone or email depending on your chosen subscription. A lot of questions you might have are already answered in our Help center.

Are there any additional costs for customer support?n answer to my customer support questions?

No, every SANVO subscription type includes unlimited customer support via e-mail and/or telephone.

How quickly will I receive an answer to my customer support questions?

In most cases you will receive a reply within four hours after sending your email request, but no later than the next business day.



How long will it take for my order to be shipped?

Order preparation takes 25 working days to ship. At the end of the year, consecutive holidays and peak seasons, due to the large volume of shipments and the time required for quality inspection, the delivery time may take a long time. Delivery time may be delayed. We apologize for any inconvenience. In addition, although we are doing our best to avoid this situation, if the goods you ordered are out of stock, we will notify you as soon as possible.

At checkout, you may be told that the estimated shipping time is too long. This may be due to the fact that some products are currently out of stock or insufficient in stock, and are being restocked.

If you have any questions about the delivery time, please contact our customer service team.

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We’re proud to bring superior quality paint and coating products, and help facilitate your business in this competitive and promising market.


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