Manufacturer of multiwall
polycarbonate sheets

Granules from brands COVESTRO (MAKROLON) and LEXAN. Over 30 000 m² in stock – various thicknesses, colors and formats.

Go to shop Wholesale offer

We serve individual and wholesale customers. Thanks to years of experience and attention to customer needs, we stand out as a trusted partner in construction and industrial projects.

Multiwall polycarbonate

Polycarbonate sheets,
you can trust

We combine the highest quality material with fast delivery and expert support at every stage.

Weather
resistance

Resistant to UV, rain, snow and extreme temperatures.

Fast
delivery

Own transport and express shipping throughout Poland.

Wide
selection

Up to 30 000 m² of sheets in various thicknesses, colors and formats – in stock.

Technical
advice

Support at every stage of the project – from sheet selection to installation.

Highest quality Covestro® and Lexan® brands

Excellent thermal insulation Ideal material for insulation.

Lightweight yet strong Durability and lightness in every project.

For everyone Serving individual and wholesale customers.

Check available sheets Request a quote or contact us

Proven solutions. Reliability. Trusted by thousands of customers.

Multiwall sheets (4X or 6X)

Greater strength and stability. Extra reinforcement for demanding projects.

THICKNESS 10 mm, 16 mm,
20 mm

WEIGHT Higher weight per m²

WALLS Multiwall

APPLICATION Roofing, rooflights, enclosures, halls, industrial facilities

Maximum strength and durability

Single wall sheets

Box Classic single wall polycarbonate sheet

A lighter and more economical solution. Excellent choice for standard construction and garden applications.

THICKNESS 4 mm, 6 mm,
8 mm, 10 mm

WEIGHT Lower weight per m²

WALLS Single wall

APPLICATION Roofing, shelters, greenhouses, advertising

Economical choice for everyday applications

UV resistance

Protection against radiation and changing weather conditions.

Durability

High resistance to impact, loads and cracking.

Lightweight

Easy installation and lower construction costs.

Quality guarantee

Proven granules from European leaders – COVESTRO® and LEXAN®

Need help choosing? Contact us – we'll recommend the optimal solution!

Solid polycarbonate distributor

Solid polycarbonate

for home, business and industry

A modern high-strength material that combines aesthetics with reliability. Ideal for many applications.

Exceptional impact resistance
Significantly lighter and more resistant than glass.
UV protection on both sides
Double-sided protective UV coating.
Lighter than glass
Easier transport, installation and everyday use.
Wide selection
Available in various thicknesses, colors and sheet formats.

Go to shop Wholesale offer

Not sure which sheet to choose? Contact us – we'll find the best solution.

UV resistance

Protection against radiation and weather conditions.

Durability

High resistance to impact, cracking and scratches.

Lightweight

Up to 50% lighter than glass – easy to install and process.

Temperature resistance

Dimensional stability across a wide temperature range.

Easy to process

Can be cut, drilled, bent and thermoformed.

Many colors

Clear, opal, tinted and many more.

Mounting accessories distributor

Complete system

for polycarbonate installation

Profiles, tapes and accessories matched to multiwall and solid sheets. Everything you need for a perfect installation. All in one place.

Perfect fit

Compatible with all sheet systems.

Durability and resistance

UV, corrosion and moisture resistant material.

Fast and easy installation

Thoughtfully designed profiles simplify the work.

Products available immediately

Wide assortment, fast order fulfillment.

Go to shop Free quote

Polycarbonate mounting accessories – profiles, tapes, elements

Aluminium profiles

Connecting, clamping, closing, wall-mounted.

Polycarbonate profiles

H connector and U closure profiles.

Tapes

Vapour-permeable, filtration tapes.

Fasteners

Screws, washers, clips.

Seals

EPDM, rubber, flexible.

End caps

Aesthetics and edge protection.

Silicones

For durable and watertight installation.

All accessories

Full assortment in the shop.

Terrace roofing

Carports

Greenhouses

Balcony roofing

Rooflights

Partitions and walls

Acoustic screens

Pool covers

Bus shelters

Winter gardens

BRAND TECH-PLAST —

Manufacturer of cardboard boxes
and packaging materials

Karton-box.pl is a brand belonging to TECH-PLAST, specializing in the production of flap boxes, shipping packaging and packaging materials. We serve both online stores and wholesale customers, offering fast delivery times and the option of custom-sized and printed boxes.

Boxes
in stock

24h
shipping

Custom
sizes

Company
printing

Go to shop Quote custom boxes

5% discount upon account registration

Free delivery from 300 PLN

Orders over 300 PLN shipped free by courier

Volume discounts

The more you order, the more you save – attractive wholesale discounts

About us

Get to know us

TECH-PLAST Sp. z o.o. is a dynamically growing company with many years of experience in the plastics industry. From the very beginning we have focused on development, quality and a partnership approach to our customers.

Today we are a manufacturer of high-quality multiwall polycarbonate and a distributor of solid polycarbonate and mounting accessories. In response to market needs we have expanded our activity to include cardboard packaging and packaging materials.

We combine experience, innovation and quality, offering products you can truly rely on.

We have our own logistics and transport base.

Experience

Long-standing market presence and customer trust.

Quality

High-quality products and materials proven in practice.

Partnership

Individual approach and long-term cooperation with the customer.

Logistics

Own logistics and transport base – fast and reliable delivery.

2007

Business founded

The company was established in February 2007 under the name TECH-PLAST Konrad Kalina, headquartered in Belęcin.

2013

New headquarters

In March 2013, the company's headquarters was relocated to a newly built facility in Kiełpiny. The expanded production area allowed us to grow our operations and expand our machinery fleet.

2015 – 2021

Continued growth and consolidation

At the beginning of 2015, TECH-PLAST Konrad Kalina was transformed into TECH-PLAST SYSTEM Sp. z o.o., Sp. Komandytowa. In 2021 it became TECH-PLAST Sp. z o.o. Years of experience and a focus on continuous development allowed us to tailor services to each customer's individual requirements.

2023

Second location

At the end of 2023 we opened a second branch in Wolsztyn, at ul. Przemysłowa 7. We expanded our warehouse capacity.

2024

Continuous company growth

Thanks to many years of experience working with polycarbonate, we have long been capable of producing our own material. Since 2024 we are officially a manufacturer of multiwall polycarbonate, produced from the highest quality granules of the COVESTRO (MAKROLON) and LEXAN brands.