Aqua-Flex MS-Polymer

Question : is it safe for a hot tub?

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Answer:

WEICON Aqua-Flex MS-Polymer is an elastic adhesive and sealant that has specific properties making it suitable for use in wet and damp environments. Here are some key points regarding its safety and use in hot tubs:

Advantages:

• Water Resistance: Aqua-Flex is resistant to both fresh and salt water, making it ideal for use in a hot tub.
• Aging Resistance: The product has excellent resistance to weathering and UV rays.
• ISEGA Certification: This indicates that the product is safe for applications in the food sector, suggesting it meets safety standards.

Application:

• Ensure surfaces are clean and grease-free before applying the product.
• The processing temperature range is between +5 °C and +40 °C, which is suitable for most indoor hot tubs.

Limitations:

• The shelf life is 12 months when stored under optimal conditions (unopened).
• For applications involving very high temperatures or constant exposure to heat, the temperature resistance of -40 °C to +90 °C (briefly up to +130 °C) should be taken into account.

Conclusion:

Overall, WEICON Aqua-Flex MS-Polymer is suitable for use in hot tubs as long as it is correctly applied and the processing instructions are followed. However, it is advisable to conduct personal tests to ensure that the product meets your specific requirements.

Question : Will this sealant adhere to low surface energy plastics such as High Density PolyEthylene (HDPE)?

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Answer:
Hello, most likely not reliably without surface treatment or a primer. Aqua‑Flex is an MS‑polymer and the technical sheet states that “most materials can be bonded. For certain materials or special requirements, we recommend the use of a bonding agent (primer). Mechanical surface pre‑treatment e.g. by grinding or sanding can also improve the adhesion considerably.” HDPE is a low surface energy plastic (like PP) and typically gives poor wetting and weak adhesion to sealants/adhesives unless the surface is pretreated or an adhesion promoter is used. Remove grease/dirt with WEICON Surface Cleaner; for heavy contamination use Cleaner Spray S or WEICON Sealant and Adhesive Remover (as noted in the TDS) Mechanical or physical pretreatment Light abrasion (scuff sanding) to increase surface roughness Or use flame treatment, corona or plasma treatment for best improvement on PE/PP Use a dedicated primer / adhesion promoter for polyethylene Apply a primer designed for low surface energy plastics (PE/PP). Aqua‑Flex may adhere well afterwards but you must verify primer compatibility with the product and with any regulatory requirements (e.g. food contact) Assembly/application Apply adhesive while primer is still active and join parts before the sealant skins over (skin‑over ≈ 25 min per TDS). Best regards WEICON

Question : Is the product safe to be used in Aquariums/Terrariums?

:

Answer:
Hello, our WEICON product Aqua-Flex with the article no.: 13701310 is unfortunately not recommended for this application. There are special other manufacturers that have a better adhesion on glass surfaces and do not diffuse substances into the aquarium like our product. Kind regards WEICON

Question : is it safe for a hot tub?

:

Answer:

WEICON Aqua-Flex MS-Polymer is an elastic adhesive and sealant that has specific properties making it suitable for use in wet and damp environments. Here are some key points regarding its safety and use in hot tubs:

Advantages:

• Water Resistance: Aqua-Flex is resistant to both fresh and salt water, making it ideal for use in a hot tub.
• Aging Resistance: The product has excellent resistance to weathering and UV rays.
• ISEGA Certification: This indicates that the product is safe for applications in the food sector, suggesting it meets safety standards.

Application:

• Ensure surfaces are clean and grease-free before applying the product.
• The processing temperature range is between +5 °C and +40 °C, which is suitable for most indoor hot tubs.

Limitations:

• The shelf life is 12 months when stored under optimal conditions (unopened).
• For applications involving very high temperatures or constant exposure to heat, the temperature resistance of -40 °C to +90 °C (briefly up to +130 °C) should be taken into account.

Conclusion:

Overall, WEICON Aqua-Flex MS-Polymer is suitable for use in hot tubs as long as it is correctly applied and the processing instructions are followed. However, it is advisable to conduct personal tests to ensure that the product meets your specific requirements.

Question : Will this sealant adhere to low surface energy plastics such as High Density PolyEthylene (HDPE)?

:

Answer:
Hello, most likely not reliably without surface treatment or a primer. Aqua‑Flex is an MS‑polymer and the technical sheet states that “most materials can be bonded. For certain materials or special requirements, we recommend the use of a bonding agent (primer). Mechanical surface pre‑treatment e.g. by grinding or sanding can also improve the adhesion considerably.” HDPE is a low surface energy plastic (like PP) and typically gives poor wetting and weak adhesion to sealants/adhesives unless the surface is pretreated or an adhesion promoter is used. Remove grease/dirt with WEICON Surface Cleaner; for heavy contamination use Cleaner Spray S or WEICON Sealant and Adhesive Remover (as noted in the TDS) Mechanical or physical pretreatment Light abrasion (scuff sanding) to increase surface roughness Or use flame treatment, corona or plasma treatment for best improvement on PE/PP Use a dedicated primer / adhesion promoter for polyethylene Apply a primer designed for low surface energy plastics (PE/PP). Aqua‑Flex may adhere well afterwards but you must verify primer compatibility with the product and with any regulatory requirements (e.g. food contact) Assembly/application Apply adhesive while primer is still active and join parts before the sealant skins over (skin‑over ≈ 25 min per TDS). Best regards WEICON

Question : Is the product safe to be used in Aquariums/Terrariums?

:

Answer:
Hello, our WEICON product Aqua-Flex with the article no.: 13701310 is unfortunately not recommended for this application. There are special other manufacturers that have a better adhesion on glass surfaces and do not diffuse substances into the aquarium like our product. Kind regards WEICON