Friday, January 31, 2014

Allgemeine Bauzeitung

Allgemeine Bauzeitung, Germany's weekly construction industry paper, about formwork repair on site with emplica repair kit.

Monday, January 20, 2014

how to keep the emplica drill bit in shape and clean with resin remover

Contact with concrete softens the phenolic film coating. By drilling through the film, the phenolic resins will start sticking tot he drill bit. This can effect the cutting performance negatively.

To clean your drill bit, a resin remover should be used regularly to keep the blades and spurs in good shape. See how our resin remover works wonders on a drill bit.

Emplica resin remover comes as a concentrated granulate that needs to be solved in water.

Use the drill bit’s original packaging as a container and pour in 1 tsp oft he granulate and add 100 ml of cold water.

sink the drill bit into the solution and let rest for 1 to 8 hrs.

The solution will get a brownish color, this indicates that it is working.

Rinse the drill bit with lots of cold water.

 dry the drill bit

 apply oil to avoid rusting

finished and ready for more drilling

How to set plywood repair plugs perfectly flush

Setting plywood repair plugs in such a way, that the concrete surface will later show no indentation requires a little understanding of physical properties of wood and water.

Processed wood directly from the factory has a moisture of ca. 8 per cent. Plywood panels, that have been used on site have a much higher moisture content of ca. 30-50 per cent.

After setting the repair plug into the panel, it will suck up moisture from the surrounding wood and swell. To avoid plugs from sticking up from the panel’s surface, one must set them a fraction of a millimetre deeper so it has room to swell. We recommend half the thickness of a fingernail.

Adjust depth stop of router to desired depth (we use a plug to see how deep we need to set the depth:

drill until depth stops

You can see the hole is declining towards the middle in the shape of a funnel. this gives room for excess glue to expand.

Apply glue to the edge

Set in plywood plug with a rubber hammer. As you can see in the picture below, it is a little "too deep". But as explained above, this is what we want. The plug will now suck up moisture from the panel and swell. it will be flush with the rest of the panel within a few hours or latest for the next pour.

You can download this guide as a pdf file from our website here: