A series of tests on bonding thin porcelain stoneware with various substrates and adhesives
Tests were conducted to select the best adhesive and substrate for bonding thin porcelain stoneware to create a noncombustible panel.
Materials:
1. Thin porcelain stoneware (3.5 mm)
2. SwissPearl fiber cement, 8 mm
3. Knauf Fireboard, 12 mm
4. Soudal SoudalFlex 40FC adhesive
Materials:
1. Thin porcelain stoneware (3.5 mm)
2. SwissPearl fiber cement, 8 mm
3. Knauf Fireboard, 12 mm
4. Soudal SoudalFlex 40FC adhesive
- 5. Kleiberit 114.5 contact adhesive
We obtained the following results:
Thin porcelain stoneware + fireboard, PU glue.
After hitting with a mallet, the outer coating cracked (due to its inability to be applied evenly, PU adhesive inevitably leaves gaps between the materials to be bonded.).
After hitting with a mallet, the outer coating cracked (due to its inability to be applied evenly, PU adhesive inevitably leaves gaps between the materials to be bonded.).
sample №1
We cut 4 pieces of thin porcelain stoneware, and 2 pieces each of fiber cement and fireboard. The dimensions of the pieces are 500×500mm. The samples were dusted and degreased. Then the thin porcelain stoneware and fiber cement/fireboard were bonded together with 2 adhesives.
- Thin porcelain stoneware + fireboard, PU glue
- Thin porcelain stoneware + fiber cement, PU adhesive
- Thin porcelain stoneware + fireboard, Kleiberit glue
The samples took 3 days to dry after gluing. Then they were exposed to mechanical stresses of a purely scientific nature (they were subjected to jumping, running, striking with a mallet, breaking, and chiseling between layers).
Thin porcelain stoneware + fiber cement, PU adhesive.
After hitting it with a mallet, we observed similar cracking patterns to those seen in sample #1. When attempting to separate 2 layers, the porcelain stoneware chips tend to break off.
After hitting it with a mallet, we observed similar cracking patterns to those seen in sample #1. When attempting to separate 2 layers, the porcelain stoneware chips tend to break off.
sample №2
Thin porcelain stoneware + fireboard, Kleiberit glue.
No visible damage was observed after hitting the sample with a mallet (glue is applied evenly, no voids). Attempting to separate the 2 layers can result in the fireboard crumbling.
No visible damage was observed after hitting the sample with a mallet (glue is applied evenly, no voids). Attempting to separate the 2 layers can result in the fireboard crumbling.
sample №3