Technical information

Note for Products in “Product Guidance”

1)This “Product Guidance” is based on our sealing technology and actual performance derived from our customer-service activities in the past 120 years. The general specifications given herein may not always be reproducible in the actual usages.

Prior to adopting our products, customers are requested to conduct tests to determine that our products fully meet customers’ requirements.

2)The contents of “Product Guidance” may change without a notice.

3)Please purchase Sakagami products from the official distributors to secure authenticity and to be free from counterfeit products.

Handling precautions:

1)Important handling and installation precautions in this catalogue, page 14 to 18, should be complied to obtain optimum product performance.

2)For food, pharmaceutical and therapeutic applications, please consult our professionals.

3)Install the packings in the correct directions. Improper installation may cause a damage to the packings and/or failure of sealing performance.

4)The product identification of“Non-lube”does not mean“No lubrication required”.Grease should be applied to the packings and to the surfaces to which the packings get contacts.

5)Do not incinerate packings. They may create hazardous gas when decomposed by heat. Follow the local legislations for waste control

Storage precautions:

1)Although the packings are properly packed in plastic bags to ensure a good storage condition, it is advisable to store these bags in a solid box or a bag.Then keep them in a dark and cool place.

2)Once the package is opened, avoid contacts to dusts or contaminants.The original packing status should be maintained as long as possible.

3)Keep away from high humidity. Especially, product with metal jacket may get rusty and plastic product made of polyamide or polyester material may change physical characteristics.

4)Do not expose to direct sunlight, ozone or radiant ray.

5)Do not place heavy material on the packings. Do not bind up packings by a string or a cord. Do not hang the packings on a nail or a hook. These inadequate handling methods may cause scars and distort shapes of products.

Storage limitation of packings:

  Materials Storage limitation
Rubber NBR (Nitrile rubber) 10years
NBR(Nitrile rubber)+PVC(Polyvinyl chloride) 10years
NBR(Nitrile rubber)+EVA(Ethylene vinyl acetate) 10years
Hydrogenated nitrile rubber 20years
EPDM(Ethylene‐propylene rubber) 20years
FKM(Fluorine rubber) 20years
S-KIDⓇ rubber (Specially formulated nitrile rubber) 10years
Polyurethane rubber 10years
Resin Fabric-reinforced phenol 20years
Fabric-reinforced polyester 10years
Polyester 10years
Polyamide 20years
S-FLON (PTFE) 20years
Polyethylene 20years
Polyacetal 20years
Polyester-fiber complex 10years


1)The storage limitation is the period starting from the date of production to the target date under the appropriate storage conditions.

(The production date can be referred to the “lot No.” indicated in the product label.)

2)The above storage limitation does not directly mention about the operating period or durability of the products.

3)A white or light colored crystalline deposit on the surface of the rubber may take place. The phenomenon called a BLOOM, however does not cause any malfunction to the product performance.

4)Products made of fabric-reinforce phenol resin may be discolored, however does not cause any malfunction to the product performance.

5) The material numbers and the products of the above chart are referable in Materials“Classification of Materials”.