Boekel & Van der Knaap Schilderijenrestauratie

Boekel & Van der Knaap Schilderijenrestauratie Conserveren en restaureren van schilderijen. Kijk voor meer informatie op:
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www.schilderijen-schoonmaken.nl

Merry Christmas everyone! Thanks for your continued support! This picture shows traces of happy Christmas gatherings in ...
25/12/2025

Merry Christmas everyone! Thanks for your continued support!
This picture shows traces of happy Christmas gatherings in the past. Paintings are often decorated with real tree branches that will eventually drop their needles. Tree needles are what we find most on the backside of paintings between stretcher bar and canvas.
Enjoy your holidays!

Happy birthday to Johannes Klinkenberg, born this day in 1852. We celebrate his birthday with this lovely view on the Sp...
14/01/2025

Happy birthday to Johannes Klinkenberg, born this day in 1852. We celebrate his birthday with this lovely view on the Spaarne river in Haarlem, halfway through varnish removal. Klinkenberg's paintings were in high demand during his lifetime. He was even more famous abroad, were his sunny Dutch city views were highly appreciated.

05/12/2024

Retouching the pretty abraded paint surface of a portrait of this sweet boy dating from 1632. Dot by dot it's coming back together.

Honig Breethuis in Zaandijk in the spotlights today! We are checking the condition of the beautiful interior paintings m...
06/11/2024

Honig Breethuis in Zaandijk in the spotlights today!
We are checking the condition of the beautiful interior paintings made by Willem Uppink in 1830. After their restoration in 2006 by our studio it was time to see how they have been doing these past 18 years. So far so good! Swipe to see some cute details!
#1830

Happy Halloween! A spider's nest on the paint layer of a painting.
31/10/2024

Happy Halloween!

A spider's nest on the paint layer of a painting.


24/10/2024

Throwback Thursday to the treatment of beautiful "On our way home" by Anton Mauve (1838-1888).
The painting proved to be in a relatively good state, despite being treated multitple times in the past. Swipe to see the treatment steps we took.

1. Detail of the painting, before and after treatment.
2. The painting was covered by a thick layer of grey surface dirt. We removed it, see the lower picture it shows the surface halfway cleaned.
3. The varnish had yellowed significantly over the years. See the lower picture for the result of the cleaning halfway through varnish removal.
4. The final result! Beautiful bright colours came back to life.

Sometimes you find something on a painting that brings you even closer to the artist. In this case, a partial fingerprin...
22/10/2024

Sometimes you find something on a painting that brings you even closer to the artist. In this case, a partial fingerprint from Isaac Israels.

17/10/2024

"Pine trees in the Snow" by Dirk Filarski needed a lot of retouchings. The big amount of paint losses were filled with white fillings. Dot by dot the pine trees became whole again. Three examples of before-and after pictures are shown here. After retouching, the vibrant colours and shapes of the trees are coming back to life.

#1917

Born this day in 1885, Dirk Filarski! We are celebrating his birthday with an overview of the extensive treatment of his...
15/10/2024

Born this day in 1885, Dirk Filarski!

We are celebrating his birthday with an overview of the extensive treatment of his painting "Pine trees in the Snow" made in 1917. On view at . Scroll to see the different treatment steps!

1. Before treatment and after treatment
2. A big amount of small paint losses is visible when looking closely at the paint layers. This picture gives a good idea of the actual amount. Each arrow points at a lacuna. During treatment we consolidated all the loose and flaking paint.
3. The painting was treated several times before, highly likely because paint losses were also occurring in the past. It seems to be an ongoing problem which have to be monitored throughout the years. In the past the painting was extensively overpainted to cover up the paint loss. The red areas are indicting the locations with overpaint. The full sky and foreground were completely overpainted.
4. The varnish was covered by a grey layer of dirt. On the picture you can see the surface cleaning halfway through removal.
5. Halfway through the removal of the discolored, yellow varnish and overpaint. Underneath the overpaint was another discolored varnish layer present, which we also removed.
6. To be able to integrate all the small paint losses, we filled and structured the lacunae with white fillings which you can see on this picture.
7. After retouching, the vibrant colours and shapes of the trees are coming back to life.
8. After the final varnish layer we placed the painting back in it’s frame.

#1917

In the beginning of this year we treated this little panel painting "Landscape with cow, donkey and horse" from 1645.  S...
10/10/2024

In the beginning of this year we treated this little panel painting "Landscape with cow, donkey and horse" from 1645. Swipe to see the pictures during the treatment.

1. Before treatment
2. The painting was treated several times before. Large abraded areas of paint were retouched. The retouchings discolored over time which made them more visible. We removed surface dirt, yellowed varnish and the disturbing retouchings. In the picture you can see the cleaning halfway through treatment. Abraded areas of paint are visible in the foreground.
3. The painting after varnish and overpaint removal.
4. Small losses in the paint layer were then filled and structured to match them with the original, surrounding paint layer. The painting was then varnished, retouched and varnished again. Here you can see the painting after treatment.

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