Menu

(269) 279-1700

Independent converter of laminated paperboard

The part you never see holds the part you do.

We engineer laminated paperboard components that live inside other companies' products. The stiffener in a sun visor. The deck under a palletised load. The sheathing behind a brick wall.

Vehicle interior showing seat backs, door panels and sun visors Laminated paperboard running through the nip of the solid fibre laminator What the buyer sees What we make

Specified by

Our board ships inside their products.

Ford
General Motors
Chevrolet
Adient
Magna
Volvo
IKEA
Nestle
Walmart
Greif
Mauser
D.R. Horton

The process

One line. Not three vendors.

Most converted paperboard parts pass through three companies before they reach an assembly line: a coater, a laminator, a die cutter. Every handoff is a lead time, a freight cost and a place for the specification to drift.

All five stages below run in one plant. When a tolerance moves, one company changes it.

  1. 01

    Roll stock

    Kraft, recycled chipboard, clay coated and water resistant grades, selected against your load case rather than our inventory.

    In house
  2. 02

    Extrusion coating

    Molten polyethylene laid onto the web. A clean moisture barrier that sits concealed below the surface instead of an asphalt saturant.

    In house
  3. 03

    Lamination

    Up to five plies bonded into one solid board. No flute and no void, so stiffness is uniform across the sheet.

    In house
  4. 04

    Flexographic print

    Two colour printing on the laminating line, so a branded or coded surface costs no extra pass.

    In house
  5. 05

    Precision die cutting

    Steel rule dies cut the finished profile off line. Tight nesting keeps scrap down and the cut edge clean enough to sit against a trim surface.

    In house

Every stage above happens in Constantine. Nothing is subcontracted and nothing waits on another vendor's schedule.

Read the capability detail
Operator handling laminated sheets on the plant floor in Constantine, Michigan
"Most times you can't see what we make, even though you look right at it every day."

Fibre Converters, answering the question we are asked most

Where our parts live

Seven industries. One material discipline.

Each one is the assembly a buyer recognises. The cut line opens it to the component underneath.

Materials

Material is the first decision, not the last.

We are an independent laminator, so the substrate is chosen for your load case instead of drawn from what we happen to stock.

Send us the load case
Paperboard grades converted at Constantine
Recycled paperboard Water resistant or plain chip, used for packaging inserts, notebook backing, product stiffening and decorative furniture panels. Laminated up to five plies.
Kraft Heavyweight paper and board from a chemical pulping process. Higher elasticity and tear resistance than boards made by other pulping routes.
Clay coated kraft and SBS Kraft board with a clay coated extra strength backing where the job needs kraft strength plus a printable face. Solid bleached sulfate for high end printing on white.
Coated water resistant Board coated to retard or prevent water soaking in, specified where the part sits in weather or against a moisture load.
Recycled content Much of what we convert is recycled, and internal die cutting waste, wood flour and plastic resin are returned to the materials stream rather than landfilled.

Certification and compliance

  • BRCGS Issue 6

    Packaging Materials, covering food contact work.

  • MIL-T-13560

    Military specification met on targetry board.

  • Engineering TERs

    Technical evaluation reports available for sheathing.

Before you call

The three things buyers ask first

Do I need to know which paperboard grade I need?

No. Tell us how the board sits in your product and what it has to survive, including strength and water resistance. Our design department works back to the right material and shape.

What is the difference between paperboard and cardboard?

Most people say cardboard when they mean corrugated. Solid fibreboard is laminated paper with no fluting, which gives higher strength and water resistant properties.

Are your packaging materials certified for food contact?

Yes. The packaging line is certified under the BRC Global Standard for Packaging and Packaging Materials, currently BRCGS Packaging Materials Issue 6.

All questions

Start here

Bring us the problem, not the part number.

You do not have to arrive knowing the grade, the caliper or the ply count. Tell us how the paperboard sits in your product and what it has to survive: the load, the environment, the geometry, the surface it touches. Our design department specifies the material and the shape.