A: If we have stock, MOQ 3000pcs. | B: If out of stock, MOQ is 10000pcs.
Views: 0 Author: Site Editor Publish Time: 2026-09-15 Origin: Site
The Acrylic cream jar is a common package for skincare creams, balms, and gels. Acrylic offers high clarity, good stiffness, and design flexibility. It can be molded into thick walls, thin walls, and complex shapes. However, acrylic can stress crack if the formula contains certain oils or solvents. It also has moderate oxygen and moisture barrier. At Guangzhou Ruijia Packaging Products Co.,Ltd, we produce Acrylic cream jar systems with controlled stress, barrier options, and decoration. This article covers material science, stress control, barrier coating, and technical details. It also mentions the Moisturizing cream jar, Hydrating face cream jar, Double wall cosmetic jar, and Frosted moisturizer jar.
Acrylic is polymethyl methacrylate. It has a light transmittance above 92%. It has a glass transition temperature of about 105°C. It is rigid and has good surface hardness. It can be polished to a high gloss. It can also be colored or frosted. The main grades for an Acrylic cream jar are standard, impact-modified, and UV-stabilized. Impact-modified acrylic has higher impact strength but lower clarity. UV-stabilized acrylic has additives to reduce yellowing.
A Moisturizing cream jar can be made from acrylic. A Hydrating face cream jar can be made from acrylic. A Double wall cosmetic jar can use acrylic for the outer shell. A Frosted moisturizer jar can use acrylic as the base material.
Stress cracking is a key risk for an Acrylic cream jar. Stress can come from molding, cooling, or assembly. High stress can lead to cracks when the jar contacts oils. We control the molding process to reduce stress. We use a lower holding pressure and a longer cooling time. We also anneal the jar after molding. Annealing at 70°C for two hours can reduce stress by about 60%.
We test stress with a polariscope. We also test with a solvent. A jar with low stress can resist a 2% castor oil solution for 72 hours. A jar with high stress may crack. A Moisturizing cream jar should be tested with its formula. A Hydrating face cream jar should be tested with its water-based formula. A Double wall cosmetic jar should be tested after welding. A Frosted moisturizer jar should be tested after blasting.
An Acrylic cream jar has an oxygen transmission rate of about 1.2 cc·mm/m²·day·atm. This is moderate. For oxidation-sensitive formulas, a barrier coating can help. A silicon oxide coating applied by plasma can reduce the oxygen transmission rate to about 0.3 cc·mm/m²·day·atm. This is a four-fold improvement. The coating is clear and does not affect the look. It also reduces moisture vapor transmission.
A Moisturizing cream jar with a barrier coating can protect oils. A Hydrating face cream jar with a barrier coating can protect water-soluble actives. A Double wall cosmetic jar can use a barrier inner sleeve. A Frosted moisturizer jar can use a barrier coating if needed.
Grade | Light Transmittance | Impact Strength | Oxygen Barrier | Cost Index |
|---|---|---|---|---|
Standard acrylic | 92% | 16 kJ/m² | 1.2 | 1.0 |
Impact modified | 88% | 28 kJ/m² | 1.1 | 1.3 |
UV stabilized | 91% | 15 kJ/m² | 1.2 | 1.2 |
Barrier coated | 90% | 14 kJ/m² | 0.3 | 2.1 |
An Acrylic cream jar should maintain its shape under stacking loads. We test creep by placing a 10 kg load on a 50 mm jar for 72 hours at 40°C. The height change should be less than 0.08%. This is important for filling lines and shipping. A Moisturizing cream jar with a thick wall may have lower creep. A Hydrating face cream jar with a thin wall may have higher creep. A Double wall cosmetic jar may have good creep resistance because of the outer shell. A Frosted moisturizer jar may have similar creep to a standard jar.
An Acrylic cream jar can be decorated with hot stamping, silk screen printing, or labels. Hot stamping can add a metallic logo. Silk screen printing can add a color block. Labels can provide detailed information. The decoration should be tested for adhesion. We use a tape test and a rub test. A Moisturizing cream jar can use a similar decoration. A Hydrating face cream jar can use a clear label. A Double wall cosmetic jar can use an inner insert. A Frosted moisturizer jar can use a matte label.
The injection molding of an Acrylic cream jar requires a clean mold. A dirty mold can cause surface defects. The melt temperature should be controlled. A high temperature can cause yellowing. A low temperature can cause flow marks. The mold temperature should be controlled. A high mold temperature can improve gloss but increase cycle time. A low mold temperature can reduce cycle time but increase stress. We balance these factors.
The annealing process should be done after molding. The jar should be cooled slowly. The annealing time and temperature should be set based on wall thickness. A thick wall needs more time. The jar should be inspected for stress. A polariscope can show stress patterns. A jar with high stress should be rejected.
Q1 Is an Acrylic cream jar suitable for essential oils
It depends on the oil and concentration. Some oils can cause stress cracking. A barrier coating or a different material may be needed. Testing is recommended.
Q2 Can an Acrylic cream jar be used for a Moisturizing cream jar
Yes. An Acrylic cream jar can hold a rich cream. The formula should be tested for compatibility.
Q3 How do I reduce stress cracking in an Acrylic cream jar
Use low-stress molding, annealing, and a compatible formula. Avoid high concentrations of terpenes or solvents.
Q4 Can a Hydrating face cream jar be made from acrylic
Yes. A Hydrating face cream jar can be made from acrylic. The clarity is high. A liner may be needed for water retention.
Q5 What is the barrier performance of an Acrylic cream jar
Standard acrylic has moderate barrier. A plasma coating can improve the oxygen barrier by about four times.
Q6 Can a Double wall cosmetic jar use an Acrylic cream jar as the inner sleeve
Yes. The inner sleeve can be acrylic. The outer shell can be acrylic or another material.
Q7 Can a Frosted moisturizer jar be made from acrylic
Yes. An Acrylic cream jar can be frosted. The frosting can improve grip and reduce glare.
Q8 How do I test the compatibility of an Acrylic cream jar with my formula
Fill the jar and store it at 25°C, 40°C, and 50°C for 12 weeks. Check for cracks, discoloration, and leakage. Test the formula for pH and active content.
The Acrylic cream jar offers clarity and design flexibility. Its performance depends on stress control, barrier options, and formula compatibility. By testing these factors, brands can select a jar that protects the product and supports the brand. Guangzhou Ruijia Packaging Products Co.,Ltd produces Acrylic cream jar, Moisturizing cream jar, Hydrating face cream jar, Double wall cosmetic jar, and Frosted moisturizer jar systems. We provide samples, technical data, and development support.