Marine environments demand materials that withstand saltwater, UV exposure, and constant mechanical stress. Hill Plastics delivers precision-engineered custom plastic fabrication for marine applications — from thermoformed hull components to custom enclosures and CNC-trimmed parts — with over 45 years of manufacturing expertise, competitive pricing, and support from concept through final fulfillment.
From thermoforming to precision CNC trimming, we deliver complete custom plastic fabrication solutions built for marine-grade performance.
We heat and form plastic sheets over custom molds using vacuum pressure, producing durable marine enclosures, panels, and components. UV-resistant and saltwater-tolerant materials like ASA/ABS and HDPE are available for demanding marine environments.
Using two 5'x10' CNC trimming centers, we finish thermoformed marine parts to exact drawing specifications with clean edges, precision drilling, and repeatable dimensional accuracy suitable for structural and decorative marine applications.
Our skilled fabrication department produces custom marine parts including enclosures, guards, and assemblies using heat bending, bonding, edge finishing, and fastener installation — all trimmed to specification with minimal tooling cost.
We design and build custom molds from wood, polyurethane, and aluminum tooling materials. Prototype molds can be produced in weeks, with aluminum production tooling ensuring long-run precision for marine OEM component requirements.
Rapid prototypes for marine plastic components are produced from low-cost wood or polyurethane tooling, allowing design review and functional evaluation before committing to full production tooling — reducing risk and accelerating development timelines.
Our sales and engineering team helps marine clients select the right plastic materials for UV exposure, chemical resistance, and structural demands, providing turnkey support from initial concept through production-ready parts.
Marine applications require plastics that resist UV degradation, saltwater corrosion, and mechanical fatigue. At Hill Plastics, we fabricate custom thermoformed and CNC-trimmed components using materials such as UV-resistant ASA/ABS and HDPE, purpose-selected for performance on and around water. Operating from our 20,000+ sq ft Lewisville, TX facility, we support marine OEMs and builders from prototype development through high-volume production runs — delivering precision parts on time and within budget.
See how marine and OEM clients rely on Hill Plastics for precision, quality, and dependable production.
"Great value, family business, personal attention. Over the years, Cody, Brad, and Aubrey have become valued associates in my small enterprise. Willing to tackle design challenges. Get-her-done communications. Outreach to additional sources of expertise. These folks understand the inventive process. Cody for example is a Kickstarter supporter and is familiar..."
"Hill Plastics did a great job creating a substitute back window for my RV. I have a portable mini-split air conditioner that I use in extremely hot weather to supplement my RV’s own cooling power. The mini-split has an inside unit that blows the cold air and an outside condenser..."
"Great value, family business, personal attention. Over the years, Cody, Brad, and Aubrey have become valued associates in my small enterprise. Willing to tackle design challenges. Get-her-done communications. Outreach to additional sources of expertise. These folks understand the inventive process. Cody for example is a Kickstarter supporter and is familiar..."
"Hill Plastics did a great job creating a substitute back window for my RV. I have a portable mini-split air conditioner that I use in extremely hot weather to supplement my RV’s own cooling power. The mini-split has an inside unit that blows the cold air and an outside condenser..."
"Great value, family business, personal attention. Over the years, Cody, Brad, and Aubrey have become valued associates in my small enterprise. Willing to tackle design challenges. Get-her-done communications. Outreach to additional sources of expertise. These folks understand the inventive process. Cody for example is a Kickstarter supporter and is familiar..."
"Hill Plastics did a great job creating a substitute back window for my RV. I have a portable mini-split air conditioner that I use in extremely hot weather to supplement my RV’s own cooling power. The mini-split has an inside unit that blows the cold air and an outside condenser..."
Four decades of expertise, advanced equipment, and a commitment to quality make Hill Plastics the trusted partner for custom marine plastic fabrication.
Since 1977, Hill Plastics has built deep expertise serving marine, aerospace, and industrial clients across the United States.
We stock and form UV-resistant ASA/ABS and HDPE specifically suited for saltwater environments and prolonged outdoor marine exposure.
Eight thermoforming machines, two CNC trimming centers, and a high-speed rotary former support marine projects from prototype to high-volume production.
From design assistance and material selection to mold making, fabrication, and fulfillment, we manage your entire marine plastic project under one roof.
Experienced professionals dedicated to precision plastic fabrication for marine and OEM clients.
Sales & Engineering Team
Brad Hill brings deep expertise in plastic thermoforming design and materials engineering to every customer project. As a key member of Hill Plastics' sales and engineering team, Brad specializes in helping clients navigate the complexities of material selection—evaluating cost, impact requirements, durability, tensile strength, chemical resistance, and environmental factors to identify the optimal PS or HIPS grade for each unique application. He works closely with customers from initial concept through prototype approval, offering guidance on tooling design, process optimization, and production planning. Brad's hands-on approach ensures that every thermoformed component is engineered for performance, manufacturability, and cost-effectiveness. His commitment to collaborative problem-solving and technical precision has made him a trusted advisor to OEM manufacturers, aerospace clients, and medical device companies nationwide. With a focus on delivering turnkey solutions that meet exact specifications, Brad exemplifies Hill Plastics' dedication to quality, innovation, and customer success.
Sales & Engineering Team
Cody Hill is a skilled plastics engineer and sales professional with a passion for transforming customer ideas into precision-manufactured reality. As part of Hill Plastics' dedicated sales and engineering team, Cody provides expert consultation on product design, material selection, and tooling strategy for custom thermoforming projects. He leverages advanced CAD tools like SolidWorks to collaborate with clients on design refinements, ensuring optimal part geometry, wall thickness distribution, and draft angles for successful vacuum forming. Cody's technical knowledge spans the full spectrum of PS and HIPS materials, enabling him to recommend the best plastic grade based on application-specific demands such as impact resistance, rigidity, clarity, and cost. From rapid prototyping using low-cost tooling to scaling up for high-volume production runs, Cody guides customers through every phase of the manufacturing process with transparency and attention to detail. His proactive communication style and commitment to delivering on-time, on-budget results have earned him the trust of clients across aerospace, telecommunications, industrial equipment, and medical device sectors.
For marine applications, Hill Plastics commonly uses UV-resistant ASA/ABS and High-Density Polyethylene (HDPE), both of which offer strong resistance to saltwater, UV degradation, and mechanical stress. We also work with standard ABS, PETG, and KYDEX depending on the structural, chemical, and environmental requirements of each specific marine component.
Our engineering team is ready to help you find the right solution for your marine project.
Hill Plastics serves marine OEMs and manufacturers across the United States from our Lewisville, TX facility.
Nationwide USA
Service Area
Lewisville, TX
Headquarters
Mon–Fri, 7AM–4:30PM
Availability
We serve marine clients across the entire United States — contact us to confirm fulfillment to your facility.
Serving marine and industrial clients since 1977.
Engineering designs produced with industry-standard SolidWorks software.
Every part quality-controlled for appearance and print specifications.
Share your project requirements and our engineering team will respond with material recommendations, tooling options, and a competitive quote — typically within one business day.
For immediate assistance, feel free to give us a direct call at +1 972-436-9717. You can also send us a quick email at sales@hillplastics.com.
For immediate assistance, feel free to give us a direct call at +1 972-436-9717. You can also send us a quick email at sales@hillplastics.com.