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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
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Description
Koch Chemie (Hal) 1LAlkaline pre cleaner for boat hulls and decks The highly concentrated, phosphate free Hull PreCleaner alkaline for pre washing the boat deck and hull. The combination of high quality complexing agents and special surfactants quickly dissolves even stubborn deposits such as bird and duck droppings, environmental and weather related soiling and is therefore ideal for alkaline pre cleaning. Suitable for gelcoat and boat paint surfaces as well as teak
Alkaline pre-cleaner for boat hulls and decks
The highly concentrated, phosphate-free Hull PreCleaner alkaline for pre-washing the boat deck and hull. The combination of high-quality complexing agents and special surfactants quickly dissolves even stubborn deposits such as bird and duck droppings, environmental and weather-related soiling and is therefore ideal for alkaline pre-cleaning. Suitable for gelcoat and boat paint surfaces as well as teak replacement coverings and PVC.
Recommendations for Use
Dilute the pre-cleaner 1:20 to 1:60 with water, depending on the degree of soiling; apply to the surface using a DPZ or washing sponge and leave to work for a maximum of 5 minutes. If necessary, rework with the Interior Scrubber. Then wash off thoroughly with water and a sponge. Avoid sensitive surfaces such as galvanized steel and aluminium surfaces or real wood. After thorough cleaning, polish and seal the surface to protect it from rapid resoiling.
Check for material compatibility before use. Do not use on real wood. Only use on washable surfaces. Do not use on hot surfaces. Do not allow to dry.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Vibrant IPad case
Color: Purple+Colorful, Size: Case for iPad (A16) 11th/10th Generation 11/10.9''
My daughter loves her new case. Very sturdy , strap is strong and supported when in use and just the colors alone looks exactly like the picture
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Durable, Full iPad protection, Good quality for the price, variety of colors
Color: Navy Blue, Size: Case for iPad (A16) 11th/10th Generation 11/10.9''
I am very happy with this SEYMAC case. The build quality is excellent—solid, rugged, and clearly designed to protect the iPad. The full body coverage with the built in screen protector gives me a lot of peace of mind, especially since this iPad gets used by my daughter for her art projects and she takes it everywhere.
The 360° rotating hand strap and stand are surprisingly useful. The rotation is smooth, the strap feels secure, and the stand locks into angles that actually work well for drawing or watching videos. The added shoulder strap is a great touch too—it makes carrying the iPad hands free incredibly convenient. The strap doesn’t get used as much because it is typically in a bag or in her hand as she creates.
The fit is perfect for the 10th gen iPad, and all the ports, buttons, and cameras line up exactly as they should. The Navy Blue color looks clean and professional without being boring. The added stylus holder is a plus as well.
Overall, this case delivers outstanding protection and functionality. Its durable, designed well, and absolutely worth the price. I Highly recommended for anyone who wants serious protection without sacrificing usability.
It also comes in a variety of colors so you can fit your personal style preferences.
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Reviewed in the United States on February 28, 2026
★★★★★ 4
Great Case, Just Minor Issues
Color: Black, Size: Case for iPad (A16) 11th/10th Generation 11/10.9''
This case is an overall good case, in the sense that it does a good job protecting the tablet. It covers the entire screen with a plastic screen, which I personally like and don’t mind. It also had a kick stand and sting to hang it, which is a must for kids. My kid has not broken his tablet since getting this case, BUT he did not last very long with it on. The plastic screen protector and the front piece, made it super difficult for him to pull down his control center from the top right corner. This annoyed him so much that he ended up taking the whole case off and eventually losing it.
If they could make the plastic sheet more fitted to the screen so that the issue is fixed I would give 5 stars.
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Reviewed in the United States on November 20, 2025
★★★★★ 5
Great for portability and Many uses
Color: Black, Size: Case for iPad (A16) 11th/10th Generation 11/10.9'', Color: Black, Size: Case for iPad (A16) 11th/10th Generation 11/10.9''
I use my iPad for work!! This case is a fantastic addition - easy to use when I’m on the couch or in the Office. Stand is easily changed from vertical to horizontal - Velcro handle can change large or small. My stylus also attached to the back so everything is ready on the GO
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Great value to protect your ipad.
Color: Black, Size: Case for iPad (A16) 11th/10th Generation 11/10.9''
Nicely made and thought out product. Fits perfectly and comes with everything you need. Easy to install, looks very sturdy. The shoulder strap it comes with to carry it around makes it even more versatile.
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Reviewed in the United States on April 22, 2026