PP vs PPSU: Showdown in Plastic Water Cup Production (Part 5)

There are stories in every cup, and warmth in everyday life. Hello everyone, welcome to "Dong Dong's Cup Talk"

Summer is the peak sales season for plastic water cups. At this time every year, many customers confused about plastic materials leave me messages. Their questions may vary, but all focus on material safety. https://www.zhanyict.com/en/ProductsDetail-OR-10079.htmlPeople worry that unsafe plastic cup materials will harm their health. Today I will give an in-depth analysis of the two most easily confused material pairs: the differences between PC and PCTG, and between PP and PPSU.

With years of deep experience in the water cup industry, I will refer to professional data from our factory’s material engineers, combined with mass production tests, performance inspection data and real usage scenarios. I will break down the core differences of these four materials, analyzing them in terms of safety, https://www.zhanyict.com/en/ProductsDetail-OR-10079.htmlmechanical properties, temperature resistance, drop resistance and applicable groups. This helps you fully distinguish materials that look similar and choose the right drinking cup.

Both PP and PPSU are BPA-free, safe and high-temperature resistant materials, widely used in maternity and infant water cups, baby bottles, and inner liners of vacuum flasks. https://www.zhanyict.com/en/ProductsDetail-OR-10079.htmlThough both emphasize safety, they have huge gaps in performance, durability and cost, corresponding respectively to budget entry-level models and high-end maternity & infant models.

5. Applicable Crowds and Age Groups

PP Material

Suitable for all age groups with excellent cost performance. Ideal for children’s short-term drinking cups, https://www.zhanyict.com/en/ProductsDetail-OR-10079.htmladults’ daily ordinary cups, and disposable/replaceable cups. Perfect for budget-limited and short-term usage scenarios.

PPSU Material

The top choice exclusively for high-end maternity and infant groups. Suitable for newborns, infants and pregnant women, commonly made into baby bottles, https://www.zhanyict.com/en/ProductsDetail-OR-10079.htmlsippy cups and long-term portable water cups. It fits scenarios requiring frequent disinfection, high-temperature use, and pursuit of durability and safety.

Ultimate Summary of Material Selection

- For transparent cups: Prioritize PCTG and avoid PC completely.

PCTG is safe, harmless, drop-resistant and non-yellowing, suitable for all ages. PC contains BPA which endangers health and has long been phased out by the mainstream market.

- For maternity & infant / high-temperature resistant cups:

Choose PPSU if budget allows; choose PP if you value cost performance.

PPSU features medical-grade safety, drop and aging resistance, https://www.zhanyict.com/en/ProductsDetail-OR-10079.htmland supports long-term use. PP is affordable and safe but requires regular replacement.

Drop resistance cannot be judged merely by wall thickness; material toughness is the core. PCTG and PPSU deliver far better impact resistance than PC and PP with the same wall thickness.

Shopping Tips

Check the material mark at the bottom of the cup:

- PCTG: Marked with Resin Code 7 + Tritan/PCTG

- PP: Marked with Resin Code 5

- PPSU: Marked with Resin Code 7 + PPSU

Avoid products with no marks or only marked No.7 without specifying the exact material, https://www.zhanyict.com/en/ProductsDetail-OR-10079.htmlso as to safeguard your daily drinking safety.