Re: 21-23 series rubber sill plates.
Posted by HH56 On 2014/12/9 11:15:21
Quote:
Here is one of the rear plates and one of the removable clips for the hole or inside sill side for a 21st series. Should be the same for all Clipper based bodies 20-22 and probably 23rd series. The rubber is molded to the stamped plate which is under almost the entire rubber mat. Only a small amount of thin rubber material extends past the plate on the sides and inside edges. The outside edge is just a thin lip. The plate mounts in slots and holes on the body.
To remove the assy, start at the stainless molding and pry the inner edge up to remove the clips from the holes. Once the clips are out and clear, the entire plate is slid toward the outside about half an inch to remove the tongued pieces on the metal plate from the slots.
I am using products from Smooth-On.http://www.smooth-on.com To make the mold I used the OOMOO 30 silicon rubber. It is easy to mix and has a decent open pot time. The first sill was made with Vytaflex 40 urethane rubber. It also has a good mix ratio, decent pot time and cured with no bubbles but only comes in a max hardness of shoreA 60. The consensus is that the sill rubber was originally something around a shoreA 80 so that is what I am trying to do now. The first product tried was Econ 80. Good mix ratio and decent pot time of 13 minutes but cured full of bubbles. That is where the project is for now. Waiting for the items to convert my pressure pot to a vacuum operation to arrive and will try the Econ 80 again before moving on with a different material.
At the moment am leaning toward casting a depression in the rubber to mount the plate using adhesive or velcro rather than trying to mold it in.
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I am interested in the size of the metal plate and look of the clips. I guess posting the information would be of help even though my 1949 Packard is a Standard 4 door.
I remain very interested in the brand names of the molding material and look forward to seeing more on this subject illustrated with photographs.
Just how tough or strong does the sill have to be???
Here is one of the rear plates and one of the removable clips for the hole or inside sill side for a 21st series. Should be the same for all Clipper based bodies 20-22 and probably 23rd series. The rubber is molded to the stamped plate which is under almost the entire rubber mat. Only a small amount of thin rubber material extends past the plate on the sides and inside edges. The outside edge is just a thin lip. The plate mounts in slots and holes on the body.
To remove the assy, start at the stainless molding and pry the inner edge up to remove the clips from the holes. Once the clips are out and clear, the entire plate is slid toward the outside about half an inch to remove the tongued pieces on the metal plate from the slots.
I am using products from Smooth-On.http://www.smooth-on.com To make the mold I used the OOMOO 30 silicon rubber. It is easy to mix and has a decent open pot time. The first sill was made with Vytaflex 40 urethane rubber. It also has a good mix ratio, decent pot time and cured with no bubbles but only comes in a max hardness of shoreA 60. The consensus is that the sill rubber was originally something around a shoreA 80 so that is what I am trying to do now. The first product tried was Econ 80. Good mix ratio and decent pot time of 13 minutes but cured full of bubbles. That is where the project is for now. Waiting for the items to convert my pressure pot to a vacuum operation to arrive and will try the Econ 80 again before moving on with a different material.
At the moment am leaning toward casting a depression in the rubber to mount the plate using adhesive or velcro rather than trying to mold it in.
Attach file:
(62.27 KB)
(35.71 KB)
(35.32 KB)
(90.15 KB)
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