are these markers good for 1/144 scale gundams?

I think they’re amazing for 1/144 scale kits. Although ultimately it’s all up to personal preference

Are these and other similar markers what modelers advise you use to paint over once you "remove" a nub and it leaves a mark/discoloration?

If you primer everything then all the surfaces are going to be sanded and the mark/discoloration from the nub will be a moot issue. If you don't use primer and just remove the parts from the trees then yeah you can use these markers to cover up the area where the nub was attached to the part.

How good is the coverage of the Paint? Since I am trying to paint the uncolored (black) pieces from the Valvrave I Full Impact model kit.

The paint covers well. It all depends on the color your painting on. White may look bad over the black. Besides that the red might have a hard time on the black plastic as well. The yellow looks great on darker plastic. The other black and blue should go good on anything.

Do these dry or is top coat required?

They dry to the touch in about an hour or two, and cure completely over 24-48 hours (depending on temperature/humidity conditions in your area).They do not require top coat, however top coat does improve and protect the final finish. Otherwise, they look great without top coat.

ASIN	B0009AFN0S
Additional Features	Paint markers, Superior to conventional ink markers, Special tips for precise hand detailing, Pourable for brush applications, Chisel and Fine tip markers
Age Range Description	12 years and up
Best Sellers Rank	#121,719 in Toys ( See Top 100 in Toys ) #614 in Kids' Coloring Pens & Markers
Body Shape	Pen/Marker
Brand	GUNDAM MARKER
Brand Name	GUNDAM MARKER
Closure Type	Screw Off Cap
Color	Gundam Marker Basic Set
Customer Reviews	5.0 out of 5 stars 3 Reviews
Global Trade Identification Number	04973028516333
Grip Type	Contoured
Hand Orientation	Ambidextrous
Included Components	Blending Stump
Ink Base	Water
Ink Color	Blue,White
Ink colour	Blue,White
Is Waterproof	false
Item Dimensions	9.5 x 1.9 x 14.6 centimeters
Item Weight	0.09 Kilograms
Line Size	0.5mm
Manufacturer	Bluefin Distribution Toys
Marker Type	Paint Marker
Material Type	Plastic
Model Number	GMS105
Number of Items	1
Number of Pieces	6
Pattern	Solid
Point Type	Fine
Point type	Fine
Recommended Uses For Product	Sketching
Recommended uses for product	Sketching
Style	Fine
Subject Character	no subject character
Surface Recommendation	Plastic
Target Audience	Adult
Target audience	Adult
Theme	Anime
UPC	785924464205
Unit Count	6 Count
Water Resistance Level	Water Resistant
Writing Instrument Form	Marker Pen

GSI Creos Gundam Marker Basic Set,6 Markers

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