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SI Group SP-1045
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SI Group SP-1045

Producer:  SI Group
SP-1045 is a heat-reactive octylphenol-formaldehyde resin that contains methylol groups. SP-1045 was specifically designed for the cure of Isobutylene-Isoprene (Butyl) rubber by the resin cure system. SP-1045, used in combination with halogen and zinc donors, yields butyl vulcanizates with outstanding resistnace to high heat and compression set.
Product Resources

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Identification & Functionality

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Applications & Uses

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Adhesive & Sealant Type
Recommended Uses

SP-1045 was specifically designed for the cure of Isobutylene- Isoprene (Butyl) rubber by the resin cure system*. SP-1045, used in combination with halogen and zinc donors, yields butyl vulcanizates with outstanding resistance to high heat and compression set. In addition, these vulcanizates are non- blooming, non-staining and have high modulus values. Resin cured butyl rubber, because of its versatility and inherent ozone resistance, has been employed in many areas including tire curing bladders, conveyor belts, gaskets, and heat- resistant packing compounds. The octyl group also makes SP- 1045 compatible with other elastomers, and can be used to make cements offering a wide range of properties. In addition, the reactive methylol groups can be used as functional sites for a variety of reactions such as with rosin for the printing ink market. 

Properties

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Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Color (Hellige)1-6--
Melting Point (Capillary)140-150°F-
Methylol Content8-11%-
Softening Point (Ball and Ring)80-95°C-
Specific Gravity1.04--
Physical Form
Flakes

Packaging & Availability

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Packaging Information

SP-1045  is  packaged  in  paper  bags  at  25  kilograms  net weight, stretch-wrapped on pallets.

Storage & Handling

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Storage and Handling

SP-1045 should be stored where temperatures do not exceed 86°F (30°C) for long periods of time. For best results, it is recommended that this product be used within 1 year of manufacture date. As with all phenolic resins, SP-1045 will become darker with age. Pallets should never be stored double stacked.

Documents (2)

Document Name
Type
Products
Technical Data Sheet
SI Group SP-1045
Technical Data Sheet
Products: SI Group SP-1045
Safety Data Sheet
SI Group SP-1045
Safety Data Sheet
Products: SI Group SP-1045