Low Styrene Emission / LSE
Styrene evaporation in hand lay-up and spray-up production may cause VOC emission problems in the work environment. The low styrene content and low styrene emission resins in this product group offer a safer working environment for workers by lowering the amount of styrene evaporation.

LSE type resins suppress the styrene evaporation and provide for a safer environment.

Low Styrene Emission / LSE
Styrene evaporation in hand lay-up and spray-up production may cause VOC emission problems in the work environment. The low styrene content and low styrene emission resins in this product group offer a safer working environment for workers by lowering the amount of styrene evaporation.

Hand Lay-up (HLU)

Yachts and Boats

AC Vents and Ducts

Polipol 3515 does not dissolve styrofoam models
- Product Description
- Chemical Structure
-
Available Modifications
-
Viscosity
-
Thixotropy
-
Monomer Content
-
Gel Time
-
Tmax
-
Tensile Strength
-
Elongation at Break, Tensile
-
Flexural Strength
-
HDT [0,45 MPa]
-
Barcol Hardness, 934
-
Volumetric Shrink
- Remarks
- Highlights
- Primary Usages
- Polipol 3401 TA-LSE-H20/H40
- Hand lay-up / Spray-up thixotropic preaccelerated LSE polyester
- Ortho
-
- 500-600
- Thixotropic
- 43-47
- (18-22) / (38-42)
- 140
- 71
- 2,6
- 134
- 66
- 40
- 7,4
-
OT1 , OT4 - -
Low styrene emission
- No sagging on vertical surfaces
- Quick and easy fiber wet-out
- Lloyd's Register approved
- Bumpers, fenders, cabinets, pool filters and industrial GRP parts such as vehicle parts.
- Polipol 339 TA-LSE-H20/H40
- Hand lay-up / Spray-up medium reactivity thixotropic preaccelerated LSE polyester
- Ortho
-
- 600-800
- Thixotropic
- 41-44
- (18-22) / (38-42)
- 180
- 68
- 2,2
- 140
- 86
- 48
- 8,2
-
OT1 , OT4 - -
Excellent fiber wet-out
- Good mechanical properties
- Optimum HDT
- Low styrene emission
- No sagging on vertical surfaces
- AC units and system components, applications which require mechanical strength such as GRP parts for marine and automotive industry.
- Polipol 3381 TA-LSE-H20/H40
- High temperature resistant ISO, thixotropic preaccelerated LSE poliester
- ISO
-
- 600-800
- Thixotropic
- 43-47
- (18-22) / (38-42)
- -
- 70
- 2,2
- 140
- 118
- 30
- 8,0
-
OT1 , OT4 - -
Minimal shape deformaiton
- Minimal shape deformaiton
- Fast demolding time
- Low styrene emission
- GRP parts which require thermal resistance such as vehicle and machinery hoods and engine components.
- Polipol 351 TA-LSE-H40
- Hand lay-up / Spray-up medium/high reactivity thixotropic preaccelerated LSE polyester
- Ortho
-
- 600-800
- Thixotropic
- 41-44
- 38-42
- 190
- 65
- 2
- 132
- 104
- 46
- 8,95
-
OT1 , OT4 - -
High HDT and mechanical
values
- Fast demolding
- Low styrene emission
- Low styrene emission
- Industrial GRP parts which require thermal resistance.
- Polipol 3471 TA-LSE-H20/H40
- Hand lay-up / Spray- up high HDT thixotropic preaccelerated LSE polyester
- Ortho
-
- 800-1000
- Thixotropic
- 40-43
- (18-22) / (38-42)
- 195
- 72
- 2,4
- 140
- 123
- 50
- 8,2
-
OT1 , OT4 - -
Minimal shape deformaiton
- Excellent HDT
- Fast demolding time
- Lloyd's Low styrene emission
- GRP parts which require thermal resistance such as vehicle and machinery hoods and engine components.
- Polipol 3872 TA-LSE-H20/H40
- Hand lay-up / Spray-up thixotropic preaccelerated LSE polyester
- ISO
-
- 450-600
- Thixotropic
- 40-44
- (18-22) / (38-42)
- 190
- 75
- 4,2
- 136
- 93
- 42
- 42
-
OT1 , OT4 - -
Chemical resistant
- Good fiber wet-out
- Good mechanical properties
- No sagging on vertical surfaces
- Lloyd's Register approved
- GRP parts with high flexibility and mechanical strength requirements, and lining against weak alkaline and acidic environments.
- Polipol 344 TA-LSE-H20/H40
- Hand lay-up / Spray-up medium/high reactivity thixotropic preaccelerated LSE polyester
- THPA
-
- 600-800
- Thixotropic
- 40-43
- (18-22) / (38-42)
- 190
- 70
- 2,3
- 140
- 115
- 43
- 8,2
-
OT1 , OT4 - -
MAN Nuremberg Lab
3F approved
- Excellent HDT and mechanical properties
- DIN 16946/2: Type 1140
- GRP parts which require thermal resistance such as vehicle and machinery hoods and engine components.
- Polipol 3469 TA-LSE-H20/H40
- Hand lay-up / Spray-up thixotropic preaccelerated LSE polyester
- DCPD
-
- 600-700
- Thixotropic
- 35-38
- (18-22) / (38-42)
- 150
- 70
- 2,46
- 120
- 85
- 44
- 6
-
OT1 , OT4 - -
Special DCPD structure
- High quality surface
- Excellent fiber wet-out
- Low styrene emission
- Low volumetric shrinkage
- Components that require high surface quality especially for commercial vehicles and truck GRP part productions.
Static Styrene Emission
ZERO Tooling System
• Fits 100% on master pattern
• Saves overtime and labor costs
• Low styrene ratio and low styrene emission formulations provide safer working environment
• Glossy, high quality surfaces on molds
• Long lasting molds
It provides fast mold production and superior match of the mold on model. This system allows the application of resin wet-on-wet which offers faster mold production time and labor savings.
It is possible to obtain high gloss, glossy molds with high mechanical endurance and chemical resistance. We recommend ZERO Tooling System for production methods like RTM and hand layup, where model-part match and surface quality are critical.
The application steps of mold production are described below.
Step 1 Model Preparation
Prepare master 3D pattern of the composite part in CNC machine or 3D printer.
Step 2 Preparation of Model Surface
Apply putty, primer and topcoat on master pattern surface.
Step 3 Mold Release Agent Application
Apply Polivaks N and Polivaks SIVI PVA liquid mold release agent on master pattern.
Step 4 Mold Gelcoat Application
Apply tooling gelcoat Polijel 272 / Polijel 220 on master pattern in two layers.
Step 5 Skincoat Application
Apply Polives 701-TA with glass surface veil or 225gr/m² CSM* after gelcoat.
Step 6 Polyester Application
Apply Polipol 321-ZERO wet on wet with glass fibers on skin coat. It is possible to apply 6 layers of 300 gr/m² CSM* or 4 layers or 450 gr/m² CSM* of glass fibers wet on wet. After exothermic reaction, wait for the lamination to cool down and continue until the desired thickness.
Step 7 Demolding
Wait 24 hours for the mold to cure on master pattern and install a frame in order to add structural stability. It is possible to demold after framing the mold.
Step 8 Prepare Mold for Production
Clean the mold and polish to obtain shiny appearance.
Dynamic Styrene Emissinon
Thixotropic type resins are preferred in GRP applications on vertical surfaces.
These next generation LSE (Lower Styrene Emission) type resins offer healthier working environment for hand lay-up productions.
Polipol 3469-TA-LSE is a new resin with low styrene content and low styrene emission which is suitable for applications on large surfaces. DCPD structure also offers better fiber wet-out .
High HDT Polipol 344-TA-LSE
- • Quick and easy fiber wet-out
- • High mechanical and thermal properties
- • Thixotropic, no sagging on vertical surfaces
- • No local heat build up because of resin accumulation
- • MAN Nuremberg Lab 3F approved
- • DIN 16946/2: Type 1140








Packing Types
You can choose any package type suitable for your production system or you can get further information from our sales department regarding container options.
Modification Description
- FR Filled flame retardant
- D* Filled (*with filler content)
- T
Thixotropic (no sagging)
- A
Cobalt preaccelerated
- ABP
Amine preaccelerated
- UV
UV Curing
- L UV light stabilized
- I
Lower viscosity
- V
Higher viscosity
- LSE LSE (low styrene emission)
- H*
Gel time customized (at room temperature) * minutes
H40
Optimized for summer season. Gel time (at room temperature) 40 minutes.
H20
Optimized for winter season. Gel time (at room temperature) 20 minutes.
- COLOR White or custom color options
Gelcoat Customizations
Polijel gelcoat table descriptions and modifications.
Spray Application (airless preferred)
Brush or Roller Application
Color Option: White colored
Color Option: Light colored (pastel)
Color Option: PRO colored