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Welcome !

Spiraplast offers quality plastic spirals for bindings since 1988 and in 1996 we became the first to be certified ISO 9002.

With more than 18 colors and 20 different diameters, we are confident we can meet all your needs !

Our Services :

  • Production of coloured plastic for special requests.
  • Extrusion of custom PVC wire.
  • Manufacture of plastic spirals: 3:1, 4:1, 5:1, 5 mm and 0.2475"
  • Technical support.

Our philosophy : Quick and accurate answer to your requests, high class of workmanship and a promise to meet our shipping schedule.

Our History

Spiraplast was created in Quebec City in 1988. At that time, to obtain plastic spirals, we had to have them shipped from Europe. The high costs of transportation led us to manufacture the spirals in our own plant. By 1992, the procurement of the PVC wire necessary for the production of the spirals also became a source of problems, and we then had our first extrusion machine built to our specifications. Since the beginning, the company has continued to grow, and we have developed techniques to keep us at the forefront of the market. These techniques will render the binding equipment, existing or new, more efficient.

Our Services

  • Production of coloured plastic for special requests.
  • Extrusion of custom PVC wire.
  • Manufacture of plastic spirals: 3:1, 4:1, 5:1, 5 mm and 0.2475"
  • Technical support.

Our Quality

In 1996, Spiraplast became the first, and is still the only one, to manufacture plastic spirals under ISO 9002 certification. We are proud to be able to inform our customers that we have the management tools necessary to maintain the relation of trust established since 1988. ISO 9002 insures you that our employees are totally committed to maintaining our recognized standards of quality.

Quality Statement

Our Philosophy

Quick and accurate answers to your requests.
High quality of workmanship.
Dedication to meet our shipping deadlines.

Our Goals


Provide our customers with technical support during production.


Provide products that meet our established quality standards.


Insure that the goods have been manufactured with great care and that the packaging used will not alter our products quality.

Our Objectives

ISO Audits

Insure, through internal quality audits, that all of the statements and procedures contained or referred to in our quality manual are understood, applied, and maintained at all levels of our organization, with the help of training sessions.


In order to reduce production time and keep costs to a minimum, we aim at using fewer resources than estimated. We also regrind plastic material, minimizing waste and making the environment cleaner.

Customer Comments

Be in close contact with our customers in order to prevent negative comments or dissatisfaction.

Human Resources

Establish and maintain training plans and evaluation sessions to improve the performance of our employees.

The Spiral

Our Colors
Choose a color...

Spirals can be manufactured out of plastic (PVC) or metal (nylon coated). Plastic spirals have the advantage of maintaining their shape after they have been deformed. The use of spiral to bind documents permits a full 360° opening. This type of binding is also a type of mechanical binding.


The most significant advantage of mechanical binding is that documents can be opened to lay flat, which is ideal for publications referred to frequently. With this method, it is also possible to bind together a variety of material (paper, cardboard, plastic, die-cut pieces, foldouts, etc.), and this, regardless of the weight of the paper and direction of the grain.

Plastic Wire

The plastic wire is made of polyvinyl chloride, a stable composite that maximises the color permanence and its gloss. When the wire is used to coil a spiral, certain deformations can occur but it will quickly return to its original shape. Its glossy finish will not scratch the surfaces it comes in contact with. In order to insure sufficient rigidity of the spiral, a specific wire diameter is chosen for each spiral size. Having the plastic filament size larger than its steel counterpart prevents it from tearing holes when flipping book pages. Plastic filament is available in a number of standard colours. One of the alternatives available, to match plastic spiral to the front cover of books, is to use clear filament, which always lets colours through. We produce round plastic filament with a size tolerance of plus or minus 5%. It can easily withstand any conditions below 60°C.


The size of spiral is always measured from the inside. Sizes indicated on our products are always the inside diameter of the spirals. The best way to measure the spirals is to use an analog or digital caliper ( Figure A ).

Once the document thickness has been determined, a spiral is chosen that will leave a minimum of 2mm room for manoeuvre between the document's thickness and the inside spiral's diameter (except for the 6mm spiral, which needs a minimum of 3 mm room for manoeuvre). The thickness of the document is measured using the same caliper ( Figure B ).

Download our Size Chart


The margins must be calculated based on the shape of the punched holes (round or oval) and the size of the holes.


Spiral binding requires the dimensions of the covers be the same size on the binding side as the inside of the document. If not, binding production is still possible but at a lower speed.

Size of Documents

The following punching patterns are supplied to help you determine the exact size of documents, in order to avoid having holes too close to the top or bottom of the documents, and also to have the necessary margins so that holes are not punched in the printed portion.


There are a variety of punch patterns and sizes, depending on the equipment used. These patterns and sizes are distinguished in two ways. The first is through the shape (round or oval) and size of the holes. These characteristics have no influence on spiral choice. The second, hole pitch, is definitely more important because the space between holes (pitch) greatly influences the choice of spiral. The spacing between holes available on the market is as follows:

Download our Punching Chart


Our packaging of plastic spirals adheres to the same rules for all pitches, and is as follows:

  • For products from 6 mm to 16 mm in diameter, spirals are bundled in paper and laid flat in cartons.
  • For products from 17 mm to 40 mm, spirals are meshed together in pairs, laid flat on a cardboard sheet, and are then attached at both ends with a rubber band to prevent any movement or entangling while in transit.
  • For larger orders, provided that we obtain our customer's approval, spirals can be packaged in bulk in a box with a few cardboard dividers to even out the position of the spirals. No paper bundles or rubber bands are required. Orders packaged this way must be large enough to be shipped on skids. These boxes should not be manipulated vertically since spiral deformation may occur.

We guarantee that our products are well packaged and leave our plant in good condition. If you find any distorted spirals inside the cartons, they may have been excessively shuffled in transit.


2112 De la Transmission Avenue
Shawinigan, Quebec G9N 8N8
Tel.: 418.840.2555
Fax: 819.537.4598
Customer service