How to use ECHO PU-277, a powerful, odorless, water-based adhesive for bottom pasting

When using, mix the amount you will use in one go.

1) Buff the adhesive surface of the rubber sole to improve adhesion of the adhesive.

(Sand evenly with sandpaper #60-80 to make the surface evenly fluffy.)
*Buff (file) not only the sole, but also the adhesive surface (shoe side) where the sole is attached. If you have removed the sole, remove all of the old glue before buffing (file).

2) Prime the rubber sole and allow it to dry completely.
(We do not sell primers, but we recommend P-740. The type of primer varies depending on the material, so please consult your retailer. Look for it at shoe material retailers such as Morito Co., Ltd. or Miyazaki Co., Ltd.)

3) Issue an amount of ECHO PU 277 that can be used up in one go.

4) Add 5% of ECO AKTIV19 ( crosslinker) to ECHO PU 277 and mix carefully. (The mixture should be used within 2 hours.)

( It can be used without mixing AKTIV19 ( crosslinking agent), but if high durability in harsh environments is required, mixing AKTIV19 (crosslinking agent) is more suitable. )

5) Apply the mixture to both adhesive surfaces and wait until completely dry (30-60 minutes depending on humidity). This time can be shortened by heating to 38-40°C. Once dry, both surfaces will have a clear adhesive film. Continue working within one hour of drying.

(Water-based glue has a soft viscosity, so a soft brush is better than a hard brush.)

6) Reactivate with an infrared lamp at a temperature of approximately 50-55°C (adhesive film temperature).

(A heat gun can also be used. However, be careful with the temperature so as not to burn the material or the water-based glue. We do not recommend using a household hair dryer as it has a low temperature and will heat unevenly.)

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7) Immediately align the two sides and press evenly with a hydraulic or air cushion press until the adhesive hardens.

(You can also use a rubber tube or plastic wrap to press it, but be careful to apply pressure evenly over the entire surface. Rubber tubes may not be pressed well enough and may peel off. )

After 3 days it was completely adhered.

■━━━━━━━Caution━━━━━━■

・Mix the amount of crosslinker ECO AKTIV19 that will be used up at one time. ( The mixture of ECHO PU 277 and crosslinker ECO AKTIV19 cannot be prepared in advance.)

- Do not use for any purpose other than manufacturing or repairing leather products such as shoes and bags.

- Do not leave within reach of infants and young children.

- Be careful not to get it in your eyes.

- Be careful not to let it come into contact with your skin.