100 years for the Charles Costa mirror shop




For 100 years, each of the 4 generations has seen their father invest in the Charles Costa business, without counting his time, deploying a lot of effort and always with passion


We are happy to celebrate this year the extraordinary anniversary of our centenary.


Be sure that the satisfaction of our customers will always remain at the heart of our priorities as well as the respect of commitments with our partners.


I join with all my colleagues in presenting to you our best wishes for health, success and serenity for this new year 2020.



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Sarthe. L’entreprise Grav’Or ce week-end à l’Élysée

L’entreprise mancelle de gravure sur verre, fait partie des 100 entreprises sélectionnées pour l’exposition « Fabriqué en France » qui se déroule les 18 et 19 janvier 2020 à l’Elysée.

Les samedi 18 et dimanche 19 janvier 2020, 100 entreprises françaises – sélectionnées parmi 1 750 dossiers – présenteront le savoir-faire « Fabriqué en France » de 100 départements français, à l’Élysée. L’entreprise mancelle Grav’Or a été retenue pour représenter la Sarthe.

Nommée aux Talents de la Sarthe 2018 dans la catégorie « entreprise », la société de miroiterie et décoration sur verre présentera ce week-end un paravent avec gravure à la main, feuille d’or et laquage en églomisé précise le site de l’Élysée.


Convergence of machines for stone and glass

The arrival of industrial synthetic materials on the stone market has surprising consequences on the machinery market. In fact, we see appearing from certain suppliers who are both on the glass and stone market on the stone machinery market, machines that were once exclusively used on the glass market.


Mainly for two reasons.


1 / These new materials are calibrated in thickness.

So we see machines appearing for polishing the edge (Bavelloni, Intermac, Bovone) similar to those used for glass (rectilinear, double edger).


The gain is much better productivity for running in and polishing the edge.


2 / Some materials are based on glass


We are witnessing the arrival of cutting systems from glass much more productive and easy to use (cutting tables, at Bavelloni, Intermac ...)

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Miroiterie en vente


Perspective départ en retraite une miroiterie de façonnage avec activité menuiserie aluminium et PVC est disponible à la vente.

L'entreprise dont le dirigeant est très connu et présent  sur le marché depuis de nombreuses années  possède un parc machines diversifié et est située dans une ville importante du Sud-Ouest.

Parc machines avec table de coupe, rectiligne, perceuse, machine à bandes...

Equipes de poseurs indépendants.


Pour plus d'informations glass@comascotec.com ou 06 64 73 63 77. Merci




Shaped edging machine

We speak here about a machine able to carry out only shaped edge


Depending the thickness, the cutting accuracy, and the quality, between one or 3 diamond wheels are required to carry out this and one polishing wheel;


This machine works with peripheral wheels. It means, for each edge kind and each thickness you need a set of wheels.

The using of such a machine is not very difficult. But it is a half-automatic machine which need a continuous presence of an operator (apart for circle for some machines).


The price difference with a shaped machine able to carry out edge and bevel is not very important.

A shaped edging machine is dedicated for very specific markets. Moreover the presence in most glass companies of a cnc machine able to carry out the same work but in an automatic way decrease the interest of such a machine.


You must have a look on:

-The possibility to install several wheels together on the spindle (to finish to edge and polish a glass without changing the wheels).

-The possibility to have a memory for the Z position of the tools (to save time for adjustments).

-The possibility to have several spindle rotation speeds (minimum 2, 1400 and 2800 rpm).

-Option to carry out circle in an automatic way.

-How to edge small glasses (between diameter 200 mm and 600 mm)

-These machines works with water projection. The waterproofness for plate, spindle and moto-variotor is a key point for maintenance and machine long life.

-The machine needs a 3x3 meters area. Better in a corner of your workshop (because the water projections)