Table of Contents

what is hydro flask made of
what is hydro flask made of

Hydro Flask Water Bottles keep Cold drinks stay icy cold 24 hours up and hot drinks stay piping hot 12 hours up so you can stay refreshed for any adventure, but What are Hydro Flasks made of and how they made it so well to make it so much popular?

Hydro Flask Water Bottles are Made with 18/8 pro-grade stainless steel (which is highly resistant to rust and does not need a liner, compliant with California Prop 65 regulations and Title 21 of the FDA Code of Federal Regulations, Non-Toxic, BPA-Free, Reusable, Eco-Friendly) to ensure pure taste and no flavor transfer — and the durable construction stands up to whatever life brings.


what material is hydro flask made of
what material is hydro flask made of

What Material Are Hydro Flasks Made of?

We can easy to find information on Hydro Flask shop on Amazon or its official website to know Hydro Flasks are made of stainless steel 18/8 also named SUS304, but hard to find out what is the plastic material made for the Lid of hydro flask water bottles, although it claims BPA-Free, but still make us feel worry the safety without knowing what type of plastic resin.

After more investigation and study, we confirmed the Lid of hydro flask water bottle is made of Polypropylene plastic resin (5# plastic) which is FDA-approved for food contact, so you’ll find polypropylene in food containers like those that hold yogurt, cream cheese, and butter products. Because it has a high heat tolerance, it’s also often used in packaging of food that can be heated in a microwave.


Lid of hydro flask water bottle is made of Polypropylene plastic resin (5# plastic)
Lid of hydro flask water bottle is made of Polypropylene plastic resin (5# plastic)

The soft loop on the lid of hydro flask water bottle is made of thermoplastic elastomer (TPE) which is safe and widely used for food-contact applications, such as soft spoons for babies, and for healthcare applications, such as dental guards. TPEs also make good sealing materials, such as sealing rings in piping systems, or liners in bottle caps.

What coating is used on the surface of Hydro Flask Water Bottles
What coating is used on the surface of Hydro Flask Water Bottles

What coating on hydro flask?

The coating on Hydro Flask Color is powder coating which is dishwasher safe for even more convenience, stays slip-free and colorful, no matter where you take it.

How to apply the powder coating on the hydro flask water bottle to make it so much beautiful color and durable? It needs spray painting the plastic powder raw material to the bottle, then baking with 180℃ 30 mins to let the powder stay firmly on the bottle, it can be various colors and different texture finishing, to get more information you can Ecoway Houseware Team to have technique support.

How Does Hydro Flask work?

Hydro Flask water bottles claim it keeps ice cold and beverage hot for your hydration drinking with its unique double wall vacuum insulation “TempShield“, actually it is no different from other double walls stainless steel insulated water bottle which is with a vacuum insulated layer between its double walls to prevent heat moving by convection to keep water liquid beverage ice cold 24 hours up and water hot 12 hours up without condensation issue from its outer shell surface, plus a copper lining on the inner walls to prevent heat transfer by radiation.

What is vacuum insulated water bottle made of, how it works

Share This Post

Share on pinterest
Share on facebook
Share on twitter

Leave a Comment

Your email address will not be published. Required fields are marked *

More To Explore

Do You Want To Make Custom Bottle Tumbler?

drop us an email and keep in touch

Ecoway Houseware Limited - China stainless steel water bottle tumbler oem manufacturer factory


Leave your question & needs, For Water Bottle!

Something Wasn’t Clear?

Feel free to contact us, and we will be more than happy to answer all of your questions.

custom insulated water bottles