DOWSIL™ EI-2888 Primerless silicone encapsulant

DOWSIL™ EI-2888 – The lighting market and its challenges

Stick to the clear benefit.

Growth and impact on the planet

The global LED lighting market is expected to reach $100 billion over the next decade. This corresponds to a compound annual growth rate of over 12% in value and over 20% in volume.

Lighting-related energy consumption is expected to decline by 40% by 2030, driven by LED penetration in general lighting.

Meeting the needs of the professional lighting market

The professional LED lighting market is expected to exceed $35 billion by 2022. This includes industrial, commercial, outdoor and architectural applications.

The key growth drivers are related to expectations of:

• High efficiency
• Reliability and robustness
• High brightness
• Compact size and custom shapes
• Low energy consumption

The need for a high level of protection against intrusion

• Flexible and Rigid LED Strip Lights
• Outdoor LED Displays
• Explosion proof lighting
  • Linear: Tube and Cord/Tape
  • Spot, flood and general area
  • Small portable type: Flashlights, portable headlamps
  • Specialty and Panel

Protective materials on LEDs

Protection options

Conformal coatings

• Minimal effects on luminous flux and CCT
  • Challenge: Provide as little protection as possible over bare components.

Optical encapsulant

• Provides the highest degree of protection and ease of use
  • Challenge: Impact on the CCRS

Molded lens

• Better optical management
  • Challenge: Lower degree of protection (air gap) and more complex impact price

Encapsulation is best suited for harsh environments, such as explosion-proof or high IP-rated fixtures.

Protection and performance

DOWSIL™ EI-2888 encapsulant compared to other solutions.

Watch a video to see the benefits of DOWSIL™ EI-2888 Primerless Silicone Encapsulant

Optical influence
The protective material can :

• change the Fresnel reflection
• change the color of the converted light
• change the total internal reflection

Existing encapsulation materials

Innovate with DOWSIL™ EI-2888 primerless silicone encapsulant.

Innovative technology from Dow

• Patented technology
• 100% silicone product

self-adhesive

Reliable membership on :

• Anodized aluminum
• Glass
• FR4
• Stainless steel
• Steel
• Polycarbonate
• PBT
• Copper

Even after 2000 hours of exposure to :

• 150ºC
• 85ºC / 85% RH
• -40 / +150ºC thermal shock
• Sunlight UV

Limitation: PMMA, die-cast aluminum

Optically clear in a difficult environment

Optically stable beyond the visible range and under the effect of aging

Proven results

Two rigid, high power LED modules using DOWSIL™ EI-2888 encapsulant.

Resistance of the polymerization

• Not subject to inhibition during curing
  • Common problem with silicone-based encapsulants
• Insensitive to moisture during cure ≠ urethane
  • No need for controlled atmosphere
• Reduced need for cleaning

Potential cost reduction

Ease of degassing

• Suitable for various mixing techniques, such as hand mixing, static mixing, dynamic mixing and centrifuging.
• No need for vacuum after application

Low viscosity

Mix Ratio = 1:1

Flexibility and robustness

Curing time / Hardness to define your process

Stable with age

Good dielectric properties

Long service life

• Expected stability of one year
• Keep package closed – avoid moisture
• Moisture contamination reduces cure rate

Additional unique feature

Final Comparison / Wrap-up

Price positioning

More info :

Would you like more information on DOWSIL™ EI-2888 Encapsulant silicone primerless or the entire Dowsil product line ? Contact our technical service by  phone at 04 26 680 680 or fill out our contact form.

Download our documentation dedicated to electronic protection: