Plastic shims are widely used across construction, manufacturing, engineering, and maintenance environments where precise spacing, levelling, and alignment are required. Lightweight, corrosion resistant, and cost effective, they provide a reliable alternative to metal shims in many applications. At Stephens Gaskets, we manufacture high-quality plastic shims for customers who require consistent dimensional accuracy and dependable long-term performance.
With over 70 years of experience producing shims, washers, and gaskets, we understand how material selection directly affects durability, safety, and efficiency.
What Are Plastic Shims?
Plastic shims are thin, precision-manufactured components designed to fill gaps, correct misalignment, or provide controlled spacing between surfaces. Unlike metal shims, plastic shims offer inherent corrosion resistance and electrical insulation, making them suitable for both indoor and outdoor environments.
They are commonly manufactured from durable polyester or engineered plastic materials with high compressive strength and low water absorption.
Key Properties of Plastic Shims
Plastic shims are specified because they combine strength with environmental resistance.
Key advantages include:
- High compressive strength for load support.
- Low water absorption.
- Resistance to rust, rot, and corrosion.
- Good chemical resistance.
- Lightweight and easy handling.
- Suitable for batch production and large-scale projects.
These properties make plastic shims a versatile solution across multiple industries.
Common Uses of Plastic Shims
Plastic shims are used in a wide range of practical applications where alignment and levelling are essential.
1. Construction and Building Trades
Plastic shims are frequently used to level base cabinets, countertops, window frames, and door installations. Their stability and resistance to moisture make them ideal for kitchens, bathrooms, and outdoor structures.
2. Outdoor and Weather-Exposed Applications
Because plastic shims are rust resistant and rot resistant, they are well suited to outdoor installations where metal shims may corrode over time.
3. Heavy Duty Construction
High-strength plastic shims are used as spacers to secure bolts and fasteners in structural applications. Their flexibility allows them to be cut, drilled, or screwed into position.
4. Low Friction and Alignment Applications
In mechanical systems such as heating and ventilation installations, plastic shims help achieve accurate alignment while reducing friction and vibration.
5. Petrochemical and Chemical Environments
Plastic shims offer strong resistance to corrosive materials and refined petroleum products, making them suitable for applications where chemical exposure is present.
Plastic Shims vs Metal Shims
While metal shims are preferred for high-load or high-temperature applications, plastic shims offer clear advantages in moisture-prone, electrically sensitive, or corrosion-prone environments.
Plastic shims are typically selected when:
- Corrosion resistance is a priority.
- Electrical insulation is required.
- Weight reduction is beneficial.
- Cost efficiency is important for batch production.
Material selection should always be based on operating conditions and load requirements.
Bespoke Plastic Shim Manufacturing
Stephens Gaskets manufactures plastic shims to customer specifications, supporting both standard and custom projects.
We supply:
- Custom sizes and thicknesses.
- Precision-cut profiles.
- Small production runs and high-volume batch orders.
Our manufacturing processes ensure consistent dimensional accuracy and reliable performance across every order.
Why Choose Stephens Gaskets as Your Plastic Shim Manufacturer?
Customers choose Stephens Gaskets because we combine material expertise with precision manufacturing capability.
Working with us gives you:
- Experienced UK plastic shim manufacturers.
- High-quality engineered plastic materials.
- Bespoke manufacturing solutions.
- ISO 9001-certified quality systems.
- Reliable UK-based supply.
We support customers across construction, engineering, manufacturing, and petrochemical sectors.
FAQs
1. What are plastic shims used for?
Plastic shims are used for levelling, spacing, and alignment in construction, machinery, cabinetry, HVAC systems, and structural applications.
2. Are plastic shims suitable for outdoor use?
Yes. Plastic shims are resistant to rust, rot, and moisture, making them ideal for outdoor and weather-exposed environments.
3. Can plastic shims support heavy loads?
High-strength engineered plastic shims can support substantial loads when correctly specified. Load requirements should always be assessed before selection.
4. Do plastic shims resist chemicals?
Many plastic shim materials offer strong resistance to oils, fuels, and corrosive substances, making them suitable for industrial environments.
5. Can Stephens Gaskets manufacture custom plastic shims?
Yes. We manufacture bespoke plastic shims in custom sizes, thicknesses, and materials to suit specific application requirements.
Speak to a Plastic Shim Specialist
If you require precision plastic shims for levelling, spacing, or alignment, speak directly with Stephens Gaskets.
Our specialists will help you select and manufacture a solution that delivers durability, accuracy, and long-term performance.
Contact Our Team
Phone: +44 (0)121 544 5808
Email: sales@stephensgaskets.co.uk to discuss your requirements.
Visit Our Website
Address: Stephens Gaskets Ltd, 19 Hainge Road, Tividale, Oldbury, West Midlands B69 2NR.