In addition to our offering of commodity resin materials, Impact Plastics offers a unique portfolio of specialty products. Learn more about our specialty products below!
A highly efficient and aesthetically pleasing commercial packaging material with a transparency and clarity comparable to PET and PS, UltraClear polypropylene is setting a new standard for clarity in polypropylene plastic. With UltraClear PP, the natural “milky” or “hazy” appearance typical of polypropylene plastic, is replaced by a beautiful clear material material with a glass like transparency, even in thicker parts.
With UltraClear PP, consumers can experience the same level of clarity and aesthetics found in other clear polymers such as PET / PET-G, OPS, PVC and PLA, while taking advantage of the cost efficiency, functional properties and sustainable attributes associates with polypropylene.
In addition to the improved clarity and aesthetics, UltraClear polypropylene also presents a number of advantages such as:
- Low density
- Cost efficiency
- Lower carbon footprint and greater energy savings
- Compatible with hot-fill processes
- High impact resistance
- Strong and flexible parts
Clarified Impact Copolymer Polypropylene
Clarified Impact Copolymer PP
Traditionally, using an impact copolymer PP resin comes with a tradeoff when it comes to aesthetics as typical impact copolymers cannot be clarified, even through the use of additives, and have a milky or hazy appearance in their natural form. However, now Impact Plastics offers a first-of-its-kind clarified impact copolymer PP that offers the ultimate balance of properties and aesthetics.
903D PP sheet from Impact Plastics offers improved clarity an aesthetics for thermoformed products without sacrificing performance properties. 903D PP sheet offers the ultimate balance of properties – combining the stiffness characteristic of a homopolymer, the toughness of an impact copolymer, and the clarity of a random copolymer – all in one high efficiency polypropylene sheet.
This material’s unique set of properties make 903D PP sheet suitable fo a range of thermoforming applications including:
- Refrigerated food trays and deli cups
- Cold blended drinks and ice cream cups
- Frozen food containers, with ductile breaks up to -20 C
- Microwavable and re-heatable food packaging
- Cold temperature high pressure pasteurization (HPP) applications
Mineral Filled Polypropylene Sheet
Working with polypropylene sheet for the first time often presents new challenges for thermoformers including shrinkage, low rigidity, and low stiffness. The addition talc or calcium carbonate mineral fillers can help remedy these problems while contributing added benefits compared to resin-only formulations.
Calcium Carbonate (CaCO3) Filled Polypropylene Sheet
CaCO3 is one of the most widely used mineral fillers in the plastics industry, and its use in rigid packaging has increased significantly over the years. The addition of calcium carbonate to polypropylene sheet has been shown to improve the performance of several properties including improvements to:
- Heat deflection temperature
- Increased impact strength
- Barrier properties
- Print quality
Additional benefits of using CaCO3 mineral filler in polypropylene sheet include:
- Streamlined processing – CaCO3 allows the plastic to heat & cool faster, resulting in improved productivity, higher output and faster conversion rates.
- Reduced shrinkage – improved heat deflection allows the plastic to cool down faster during thermoforming, helping to reduce shrinkage and warping.
- Cost reduction – CaCO3 allows for the replacement of up to 40% of the plastic, displacing resin and resulting in raw material cost savings.
- Improved sustainability – Use of a CaCO3 filled product results in displaced petrochemicals and energy savings as a result of increased productivity.
- FDA approved – CaCO3 additives used by Impact Plastics are FDA approved for food contact applications.
Talc Filled Polypropylene Sheet
Similarly to CaCO3 filler, the use of Talc in polypropylene sheet helps to remedy several common challenges of thermoforming polypropylene while enhancing several properties of the polymer. The use of talc in polypropylene sheet has been shown to improve the performance of several properties including improvements to:
- Increased rigidity
- Resistance to heat
- Increased heat deflection
- Faster cooling
- Reduced Shrinkage
Unlike calcium carbonate, however, the addition of talc results in a significant decrease in impact strength, so if high impact strength is an important specification, CaCO3 is the better choice.
Specialty and custom formulations of CaCO3 and Talc filled polypropylene are available upon request to achieve particular property specifications.
Oxygen & Moisture Barrier Grade Polypropylene Sheet
When working in the food packaging industry, oxygen and moisture barrier properties are critical specifications.
When it comes to moisture, PP possesses inherent moisture barrier properties. PP has a Moisture Vapor Transmission Rate (MVTR) of 0.5 (g-mil.100 in. 2/24hr.). The MVTR is a measure of the passage of gaseous H2O through a barrier – the lower the rate, the longer the package protects its contents from moisture and ensures that moisture of the product remains the same. This means, not only does the material keep unwanted moisture out, but it keeps moisture in, making it an ideal for food certain packaging applications, such as bakery applications, where it is important for the food to retain it’s moisture content. As a basis of comparison, other common food packaging materials such as PS and PET, have a MVTR of 10.0 and 2.0, respectively.
When it comes to oxygen barrier properties, PP is not traditionally seen as an effective oxygen barrier, however Impact Plastics has recently developed a proprietary formulation with superior oxygen and moisture barrier properties.
USP Class VI Certified Medical Grade HIPS
In addition to our offering of medical grade commodity thermoplastic resins, Impact Plastics also offers two grades of USP Class VI Certified High Impact Polystyrene to help our customers meet their quality and safety requirements.
An important testing protocols commonly used to designate a plastic material safe for use in the manufacturing of medical devices is USP Class testing. The United States Pharmacopoeia (USP) 30, NF 25, 2007 standard, also known as Class VI, is widely used to comply with stringent FDA regulations for products that come in contact with the human body. Learn more about our USP Class VI Certified HIPS Formulations:
Impact 1210 HIPS
- Super-high impact strength properties
- Available in multi-layer coextruded formulations
- Available in custom colors & surfaces
- USP Class VI Certified*
Impact 1205 HIPS
- Medium-impact strength properties.
- Compatible with lamination applications
- Available in custom colors & surfaces
- USP Class VI Certified*
*Certifications available upon request.
To learn more about our solutions and products, contact usContact