Connecting to Collections Care

 View Only
  • 1.  Crack in High-Pressure Laminate Exhibit Panel

    Posted 04-09-2025 10:10

    One of our exhibit panels made of high-pressure laminate developed a crack during shipping. Due to the panel's large size, we anticipated that a replacement might also be damaged in transit. As a result, we accepted the panel and asked the fabricator for a repair solution.

    The fabricator initially painted the crack, layering the paint to fill it in, but the repair was too noticeable. We then requested an alternative fix. Their next solution involved applying custom laminate shapes to the panel, incorporating one to cover the crack. This approach not only concealed the damage but also added visual interest, and we were very pleased with the result.

    However, the crack has since extended beyond the original laminate shape. The fabricator has now recommended using oil pastels to color in the crack, pressing the pigment in with a plastic palette knife and removing any excess with mineral spirits. This is similar to their original repair method, but because the new crack is shorter and partially hidden by a design element, the fix is expected to be less noticeable. That said, does anyone have an alternative suggestion?



    ------------------------------
    Rhonda Brewer
    Museum Curator
    Pecos National Historical Park
    Pecos, New Mexico
    ------------------------------


  • 2.  RE: Crack in High-Pressure Laminate Exhibit Panel

    Posted 04-10-2025 09:35
    Hi Rhonda,

    Rebecca here - I'm the C2CC monitor for the week and an objects conservator. 

    My first question is whether the crack is stepped (the two sides are not level) or whether it's in plane (the sides are level to one another)? I ask because if it's stepped, that's something you'll want to take into consideration when filling and integrating it, as it appears you have strong downward lighting that will "catch" the step or cast a shadow. 

    The oil pastel fix seems tenable. However, they are light sensitive - so they may discolor or fade over time depending on your light source (do you have LEDs inside the case? If so I'm less concerned!) No matter what material you pick, I would recommend first erring on the lighter side of what you think is necessary - it's easier to go from light to dark than to cover up dark material with light if your initial application is too dark. This is especially key if the crack is stepped and you are trying to compensate for that change in plane. 

    Another option is to fill it with a commercially available spackle material like modostuc and then paint it - acrylics might be your best bet. Modstuc does come in white but also some colors for furniture repair, and a color like cherry might be a good starting point that saves you a little time getting your the right color with paint on top of it. Two quick tips for applying modstuc: if you put some in a tiny ziploc bag and cut off the bottom corner, you can squeeze it out right into the crack to minimize clean up (think of its as a miniature version of a piping bag for applying icing to decorate a cake). You can then smooth out and clean up the excess  modostuc with a qtip dampened with a little water or saliva (what we elegantly call "spit polishing"). Once it's dried you can apply some paint to get the mottled look of the design element.

    I hope this is helpful! Feel free to reach out for any clarifications or further recommendations. 

    Rebecca 





  • 3.  RE: Crack in High-Pressure Laminate Exhibit Panel

    Posted 04-11-2025 13:41

    Not sure if the situation without a photo, however I believe the following will work: put Gaffers tape strategically on the back to support the crack area.

    Use SeamFil to fill area with colorants to match, smaller areas or to touch up color matching use wax sticks. Fil-Stik They come in a variety of colors which can be mixed to produce a closer match if required. They are heated to apply and when hardened are very durable. 

    Hope this helps being wax you may have better results.



    ------------------------------
    ~ jo lynne
    MuseumArtist123@gmail.com
    NM
    ------------------------------



  • 4.  RE: Crack in High-Pressure Laminate Exhibit Panel

    Posted 04-14-2025 17:52

    Hi Rebecca,

    I just verified the crack is in plane/level, so I plan to try the modostuc and acrylic paints.

    Thank you for your recommendations!

    Rhonda



    ------------------------------
    Rhonda Brewer
    Museum Curator
    Pecos National Historical Park
    Pecos, New Mexico
    ------------------------------



  • 5.  RE: Crack in High-Pressure Laminate Exhibit Panel

    Posted 04-14-2025 19:20

    For acrylic paint choice: Golden Paints have the most archival qualities.
    Good Luck!