Rubber to Metal Bonding Agent 828 Excellent Bonding Properties Equivalent to Chemlok 238

Rubber to Metal Bonding Agent 828 Excellent Bonding Properties Equivalent to Chemlok 238

Application

Rubber to metal bonding agent 828 is surface treatment agent for RUBBER bonding. Used as a surface coating in conjunction with Dual Coat substrate surface treatment agent, suitable for the following rubbers:

Natural rubber (NR), Nitrile butadiene rubber (NBR), Butyl rubber (IIR), EPDM, etc.

Characteristics

1. As a topcoat, used in conjunction with substrate surface treatment agent.

2. Environmentally friendly, free of heavy metals, in line with GB33372-2020, ROSH 2.0;

3. Excellent bonding properties -- non-polar rubber；

4. Good weather resistance - heat resistance, water resistance, solvent resistance, oil resistance, salt resistance, corrosion resistance;

Physical Properties

1. Component: Polymers, organic compounds, inorganic fillers and organic solvents

2. Color: Black

3. Viscosity: 200 ~ 800cps @25℃, Brookfield LV2 30rpm

30 ~ 60s @25℃, No.3 Zahn Viscosity Cup 2

4. Solid Content: 12 ~ 16 %(By weight)

5. Flash Point: 25℃

6. Dilute release agent: Xylene

7. Storage, Room temperature: Unopened container for 12 months

Applying 828

1. Stirring: Rubber to metal bonding agent 828 in the long-term storage process will have some precipitation at the bottom of the container, before the glue must be fully stirred, to achieve uniform mixing before use; If the gluing process is long, stir at a high speed for 3-5 minutes at an interval of 2 hours.

2. Dilute: According to the actual operation needs, this product can also add diluent for appropriate dilution. After dilution, it must be stirred for more than 30 minutes to achieve uniform mixing before use, ensuring that all components are evenly dispersed. It is recommended to dilute the diluted product according to the amount used. The diluted product cannot be stored for a long time.

3. Brush coating method: no dilution is required;

4. Roller coating method: no dilution is required;

5. Dip: 100 parts of 828 plus about 10-30 parts of diluent;

6. Spray method: 100 parts 828 plus about 20-40 parts diluent.

7. Coating: Rubber to metal bonding agent 828 can be applied by brush coating, dip coating, roll coating, spray coating and other methods. Coating should be uniform to avoid excessive spillover.

Cover coating: Dry film thickness(DFT) 12-25μm. 20μm is recommended 20-40μm for harsh environment；

Single coating: DFT 15-25μm, 22μm is recommended.

8. Drying: Drying at room temperature takes about 45-60 minutes, forced drying can shorten the drying time,recommended drying temperature is 60-80℃.

9. Product storage: Rubber to metal bonding agent 828 should be stored in dry and normal temperature environment, avoid long-term exposure to high humidity and high temperature environment. According to the need can be cured immediately after drying, and pollution should be avoided during parking.

10. Cleaning: Before heating vulcanization, dip a rag in xylene solvent to remove excess treatment agent spilt around. Once cured, solvent cannot be removed.

11. Vulcanization: Vulcanization of rubber and adhesive at the same time can obtain the best bonding properties. When the coating is placed in the molding mold, it should be quickly filled with rubber vulcanization. The actual curing condition depends on the curing condition of the rubber.

Notes

Rubber to metal bonding agent 828 storage temperature should not be lower than the recommended temperature (below 15 ℃), otherwise gel will appear. If this situation occurs, the 828 can be sealed and heated to 25 ℃ , and then stirred at high speed until it returns to normal state before normal use.

Precautions

1. Rubber to metal bonding agent 828 is volatile, please close the container after use.

2. Solvent steam is harmful, pay attention to fire prevention in the workplace, pay attention to low ventilation, prevent long-term inhalation or long-term skin contact.

3. Please refer to SDS for more safety information.

Brief Introduction

Qingdao Exceed Fine Chemicals Co.,Ltd is a high-tech enterprise, integrating manufacturing and trading into one body. We start business with production of polyurethane related products. With a decade's development, our business scope has extended to Construction Material, Organic Fertilizer, Food and Feed Additives, API pharmaceutical intermediates.

In order to serve customers better, we establish our own trading company Qingdao Gisonb Import and Export Trading Co., Ltd. With ExceedChem and Gisonb, we can make our customer service better and better.

We have over 30 professional technicians as well as advanced manufacturing equipment and reliable techniques. We own the independent R&D institute, and have established regular technical exchanges with various universities and research institutes to continuously improve our production process, and product quality and performances.

With dozens of years great efforts, we have exported products to Europe and other countries in Asia, North America, South America, Oceania and Africa.

Besides,based on our wide domestic network, we act as purchasing agent for customers according to their specific requirements.

Purchasing For Our clients

Besides we have our own QC staffs.They are experts in the field of chemicals.Because of this,we can keep the quality good and stable for our customers.

Nowadays we export about 30,000,000usd to more than 30 countries every year,including polyurethane chemicals,kinds of dangrous chemicals, water treatment chemicals and organic fertilizer.

Low price,good quality and regular supply are the desire of every customer’s.We believe Exceedchem is your best choice.

Service

Our own QC staff will go to the factory directly and take the samples randomly.Then check it and compare with the standard to ensure the quality.

Our own QC staffs ,check the quality strictly before delivering for our clients.

Now we are purchasing agent of many customers all over the world.We have lots of experiences of purchasing.Low cost and good quality is our target.

Our Team

Professional and responsible purchase,a team of 17 persons,they are all experts of many fields 24Hours after-sell service,a team of 5 persons,they are pofessional and patient for your problems. We are now helping our customers purchase machine, metal parts, garden equipments etc.