Click on section tabs and section questions to reveal answers
Does the decayed/damaged area have to be dry?
Yes. The area has to be completely dry and free of water and moisture. It may be necessary to dry with a heater or drier.
How do I prepare the wood surface?
Scrape away loose paint/stain with a scraper. Sand if necessary. Remove any decayed or damaged wood. Remove any grease, oil, dirt or other debris from area to be repaired. If necessary drill additional 3/8” or 1/2” holes a couple of inches from area to be repaired to apply additional Rhino-Pre Treat product. Ensure area is dry and clean before actual repair (at least 24 hours).
What temperature is recommended to use the liquid A and Liquid B product?
It is recommended to use product when temperatures are above 13°C (55°F). Liquid A and B should be at room temperature.
How do I use the Rhino-Pre Treat product?
Remove as much of the dry rot area as possible. Rhino-Pre Treat is then sprayed onto, into and around the repair area. In some cases it is recommended that holes be drilled around the damaged area. Drill a number of holes 3/8” – 1/2” and spray into or pour Rhino-Pre Treat into holes to ensure full treatment occurs.
Should I apply a couple applications of the Rhino-Pre Treat?
Yes. Apply one coat let sit for an hour then apply second coat. Let sit 24 hours before doing actual repair. A 24 hour period ensures full absorption and pre-treatment of wood. Ensure area to be repaired is completely dry.
What is the purpose of the Rhino-Pre Treat product?
Rhino-Pre Treat is an environmentally friendly treatment applied to damaged wood areas used as a pre-treatment cleaner, which is the first step of the Rhino Wood Repair® system that cleans, treats, conserves and protects wood. This pre-treatment may ensure that no further damage continues after doing the permanent Rhino Wood Repair.
Do I wait until mixed liquid is hard before I fill repair with putty?
It is not recommended to allow mixed liquid A&B to dry. The surface of the damaged area must be in a wetted out in order for the putty to adhere to the wood.
Can I mix solvents or other liquids with liquid A and/or liquid B?
No. Never mix any solvents or other liquids to any mixed or unmixed components of liquid A and Liquid B.
Do I need to add more than one coating of mixed liquid to the damaged wood area?
If you have missed or if you are unable to take out all of the damaged wood, the remaining damaged wood will aggressively absorb the mixed liquid. It may be required to add second coating of mixed liquid. We recommend you wait 5-20 minutes before applying another coating to ensure surface is wet for adhesion to putty.
How long do I mix liquid A and Liquid B?
Mix thoroughly with stir stick for 60 seconds for small quantities (100mL or less). For larger amounts 2 minute stir time is required. Please ensure sides and bottom of mixing container are thoroughly mixed into bulk of liquid.
How quickly can I add putty to the wetted liquid A&B surface?
It is recommended that after a mixed liquid is applied to the wood, you allow it to sit 5-20 minutes. Visually inspect the surface to ensure surface is wet from mixture to ensure putty will adhere. If absorbed add a second coating.
What ratio do I mix Liquid A and Liquid B?
Always use an equal amounts of liquid A and liquid B.
What temperature is recommended to use the liquid A and Liquid B product?
It is recommended to use product when temperatures are above 13°C (55°F). Liquid A and liquid B should be at room temperature. Ensure area is dry and clean before actual repair.
Why do I require mixed Liquid A and Liquid B for the repair?
There are two purposes for using mixed liquid in the repair.
i) It will absorb into the damaged wood (perhaps you could not scrap out all damaged portions) and petrify the wood to provide structural integrity again.
ii) It also acts as the permanent bond between the wood and Rhino Wood mixed Putty.
Can I mix solvents or other liquids with Putty A and/or Putty B?
No. Never mix any solvents or other liquids to any mixed or unmixed components of Putty A and Putty B.
How long do I mix (knead) Putty A and Putty B?
Gently mix or knead Putty A (white) and Putty B (yellow) until a uniform lighter yellow colour is reached. There should be not white or darker yellow streaks in mixed components.
How much coverage will I get from the various kits available.
DIY Kit: 42 cubic inches (2in x 3in x 7in) = 688 cubic cms (4cm x 4cm x 43cm)
1.0L Putty Only Kit: 89 cubic inches = 1460 cubic cms
2.5L Putty Only Kit: 222 cubic inches = 3638 cubic cms
4.2L Putty Only Kit: 373 cubic inches = 6112 cubic cms
10.4L Putty Only Kit: 923 cubic inches = 15125 cubic cms
19.8L Putty Only Kit: 1758 cubic inches = 28808 cubic cms
Also see chart on Estimated Repair Coverage page.
I have a very thin crack in my wood. How do I repair that the putty is too thick?
You can use straight mixed liquid A & B. A second option is to add a small mixed portion of liquid A & B to a mixed portion of Putty A & B. Mix these components together to get a more paste-like product.
My Putty A or Putty B is a bit flakey or crumbly when I knead together, what do I do?
Continue mixing Putty A and Putty B together. When mixing, ensure all crumbly or flakey parts that drop off onto table are added to your mix. Again, please ensure equal parts of Putty A are added to equal parts of Putty B. Please be aware, this is not a failure of the structural integrity of the Rhino Wood Repair System but rather it may have become a bit messy.
Yes, sometimes the Putty A or Putty B can be a bit flakey or crumbly. This may be caused by exceeding the shelf life or exposure to cold temperatures or fluctuating temperatures. If necessary you can add a small amount of mixed liquid A & B to your mixed Putty A & B. This can ensure additional wetting out between the A & B Putty
What ratio do I mix Putty A and Putty B?
Always mix equal amounts of A with equal amounts of B ( 1 part A to 1 part B; 1:1).
What temperature is recommended to use the Putty A and Putty B product?
It is recommended to use product when temperatures are above 13°C (55°F). Putty A and Putty B should be at room temperature.
Can I nail or screw into the repair?
Yes, you can hammer a nail, screw and drill into the repair. It is recommended to wait a minimum of 24 -48 hours before doing so to ensure product has completely cured.
Can I paint or stain the repair?
Yes the repair can be painted or stained. It is recommended to use a higher grade product be used to minimize the number of coats applied. Consult your local paint dealer.
Do I require any safety equipment?
Yes, we always recommend safety glasses and a dust mask when sanding any surface.
How long do I have to wait to sand the repair?
It can take 3-5 hours to set up depending on the repair size. If temperatures are between 12-15°C (55-60°F), it can take longer. It is recommended a minimum of 5 hours once product has hardened up.
How strong is the finished repair?
Numerous tests were performed at the University of Waterloo. The Engineering department evaluated Rhino Wood repair and compared the results to wood. They used international testing methods (ASTM world wide standards).
- Tensile Strength (ASTM D3500)
- Flexural strength (ASTM D3043)
- Hardness Test (ASTM D143)
In summary, it was determined that the Rhino Wood Repair system is up to 25X stronger than Douglas fir or pine (standard Construction wood).
I found that I did not fill the repair to the appropriate level or height. Can I add more putty to the repair to fix the void that was created?
It is recommended that you lightly sand the surface, rid of dust. Mix a small quantity of liquid A and liquid B. Apply to surface. Knead appropriate amount of putty A and putty B. Apply to liquid surface and allow to set up. It is recommended to wait 24 hours before sanding.
Estimated Repair Coverage
Do It Yourself Kit
1.0L Putty Only Kit
2.5L Putty Only Kit
4.2L Putty Only Kit
10.4L Putty Only Kit
19.8L Putty Only Kit
42 (2in x 3in x 7in)
688 (4cm x 4cm x 43cm)
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